Motorola Solutions 92FT4915 Mobile 2-Way Radio User Manual Installation Manual 2of 2

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Document ID	2024469
Application ID	ixIaVh1hWoqUpcf7NI/0ww==
Document Description	Installation Manual 2of 2
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
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Filesize	173.83kB (2172824 bits)
Date Submitted	2013-07-24 00:00:00
Date Available	2013-07-29 00:00:00
Creation Date	2013-07-23 17:58:42
Producing Software	Acrobat Distiller 9.0.0 (Windows)
Document Lastmod	2013-07-23 17:58:42
Document Title	ASTRO APX Mobile O2, O3, O5, O7 & O9 Control Heads Installation Manual
Document Creator	FrameMaker 8.0
Document Author:	Motorola Solutions - GCD Penang

2-44
2.5.1
Standard Configurations Speaker
Internal Speaker Disassembly
NOTE: This configuration is only applicable for O2 Control Heads.
You can disable the internal speaker of your radio by following the instructions below.
Use the following procedure to disassemble your radio:
1. Unplug power, antenna, microphone and all accessories connections. If the radio is a
remote-mount radio, disconnect the remote-mount control cable from the front of the
transceiver.
2. Remove the four screws found on the control head with a Torx T-20 bit as shown in
Figure 2-57. Discard the screws.
Figure 2-57. Removing the screws on the Control Head
3. Firmly grasp the front panel of the control head. Carefully remove the front housing assembly
from the back housing assembly as shown in Figure 2-58. Note the position of the attached
flex and do not pull on it excessively.
Figure 2-58. Removing the Control Head
6878215A01
Standard Configurations Speaker
2-45
4. Put the control head face down on a clean, flat surface to avoid damaging it. Do not touch the
o-ring on the back housing.
5. Carefully disconnect the speaker connector from the circuit board as shown in Figure 2-59.
Figure 2-59. Disconnecting the Speaker Connector
6. Reattach the front housing assembly to the back housing assembly as shown in Figure 2-60.
Make sure that the flex is returned to its original position and that the o-ring on the back
housing assembly is not pinched.
Figure 2-60. Reattaching the Control Head
7. Secure the front housing assembly back to the back housing assembly with four new screws
using the Torx T-20 bit as shown in Figure 2-60. Apply 9 in. lbs. torque for each screw.
6878215A01
2-46
Standard Configurations Microphone Hang-Up Clip
2.6
Microphone Hang-Up Clip
2.6.1
Standard or O3 Control Head Hang-Up Clip
The hang-up clip must be within reach of the operator(s) and close enough to the control head to
prevent cable strain. Measure this distance before actually mounting the bracket. Since the bracket
has a positive-detent action, the microphone can be mounted in any position.
Use the hang-up clip as a template to locate the mounting holes. To avoid interference when
removing the microphone, install the flathead screw in the top clip hole.
Some microphone models require the grounding of the microphone clip in order for HUB operation to
work correctly. Refer to the documentation that comes with your Motorola microphone model.
NOTE: For multi-control head configuration where only one of the control heads has a microphone,
the control heads without a microphone attached must have their HUB or Monitor pin
(J100-22) jumpered by a wire to GND (J100-1 or J100-14) for HUB operation to work.
2.7
RFID (Option)
An APX mobile radio equipped with an RFID tag allows an alternate option for tracking the radio
asset. Each RFID equipped radio has an RFID tag preprogrammed with the individual radio’s serial
number (also found on the FCC label) as well as band and radio model information (see below for
further info).
RFID Tag
Figure 2-61. RFID Location on Mid Power Radio
RFID Tag
Figure 2-62. RFID Location on APX 2500/APX 4500 Mid Power Radio
6878215A01
Standard Configurations RFID (Option)
2-47
RFID Tag
Figure 2-63. RFID Location on High Power Radio
6878215A01
2-48
2.7.1
Standard Configurations RFID (Option)
RFID Reading
To read an RFID tag using a UHF Gen 2 RFID reader (e.g. Motorola’s MC9090-G), open an
appropriate RFID read application, point the RFID reader at the tag and activate the reader's RFID
antenna (e.g. pull Motorola’s MC9090-G scanning trigger). RFID reader must be within 1 foot from
tag in order to read.
Two variables, Read Angle and Reader Orientation, aid in the distance needed to read and write to
the RFID Tag. Read distance is independent of Tag Angle, but the reader should be as close to
perpendicular to the tag as possible (Read Angle).
As Read Angle increases past 60 degrees, read distance will begin to decrease; tag will become
unreadable once Read Angle exceeds 90 degrees (see Figure 2-64 and Figure 2-66). RFID tag
cannot be read through metal. The orientation of the reader (Reader Orientation) and the tag must
be aligned to improve read and writability (see Figure 2-70).
Read Angle
RFID Tag
O5
Figure 2-64. Read Angle for Mid Power Radio
Tag Angle
RFID Tag
Figure 2-65. Tag Angle for Mid Power Radio
6878215A01
Standard Configurations RFID (Option)
2-49
Read Angle
RFID Tag
Figure 2-66. Read Angle for APX 2500/APX 4500 Mid Power Radio
Tag Angle
RFID Tag
Figure 2-67. Tag Angle for APX 2500/APX 4500 Mid Power Radio
Read Angle
RFID Tag
Figure 2-68. Read Angle for High Power Radio
NOTE: APX high power mobile radio is shown without handle to allow visibility of RFID tag.
6878215A01
2-50
Standard Configurations RFID (Option)
Tag Angle
RFID Tag
Figure 2-69. Tag Angle for High Power Radio
Reader
Reader
Tag
Tag
Figure 2-70. Examples of Reader and Tag Aligned (Reader Orientation)
Reader
Tag
Figure 2-71. Example of Reader and Tag Misaligned (Reader Orientation)
6878215A01
Standard Configurations RFID (Option)
2.7.2
2-51
Programming RFID (If Equipped)
The user can reprogram the tag (up to 12 ASCII characters when encoded to hexadecimal format)
using any UHF Gen 2 capable RFID writer (e.g. Motorola’s MC9090-G).
NOTE: Follow read direction in Section 2.7.1 to optimized reprogramming.
Table 2-10. Model Number Chart in 12-Digit ASCII Format
Model Number
M30KSS9PW1AN
Radio Tier/Band/Output Level
Last Two Digits
APX Mobile SB-MP VHF
D2
APX Low Tier Mobile-MP VHF
D8
M30KTS9PW1AN
APX Mobile SB-HP VHF
D3
M30QSS9PW1AN
APX Mobile SB-MP UHF1
E2
M30QTS9PW1AN
APX Mobile SB-HP UHF1
E3
M30SSS9PW1AN
APX Mobile SB-MP UHF2
D2
M20TSS9PW1AN
APX Mobile DB-MP 7/800-MP VHF
R2
M30TXS9PW1AN
APX Mobile DB-MP 7/800-HP VHF
R3
M30URS0PW1AN
APX Mobile SB-MP 7/800
F2
APX Low Tier Mobile-MP 7/800
F8
M24KSS9PW1AN
M22KSS9PW1AN
M22URS9PW1AN
M24URS9PW1AN
Table 2-11. Serial Number with Radio Band/Tier/Power
Characters
6878215A01
Radio Band/Tier/Power
7/800
VHF
UHF
7/800 and VHF
VHF and UHF
UHF1 and UHF2
7/800 and UHF
APX7000
APX7500 Mid Power
APX7500 High Power
APX6000
APX6500 Mid Power
2-52
Standard Configurations Completing the Installation
Table 2-11. Serial Number with Radio Band/Tier/Power
2.8
APX6500 HighPower
APX Low Tier Portable
APX Low Tier Mobile MP
APX Low Tier Mobile HP
Completing the Installation
Complete the installation by connecting the speaker to the accessory cable; verify the ignition sense
wire is attached according to planned ignition sense; attach the accessory cable into J600; verify the
control head is attached to either the TIB or the CAN extension cable; and then attach the power
cable to the back of the transceiver.
6878215A01
Chapter 3 Universal Relay Controller Installation
The Universal Relay Controller (URC) is an extension of and an orderable accessory for O7 or O9
control head. URC is used to control high power switching peripherals, e.g. lightbar. URC works on
all lightbars which can be controlled by power application. URC is connected to the transceiver's
GCAI port.
The URC design consists of a microcontroller and uses 10 relays to control the switching device. A
separate ground for isolation exists between the relay and MCU sections, which is provided by the
use of iCoupler from Analog Devices. Each relay is connected to an output with 15 A fuse. The
maximum load allowed on each output is 12 A. Two cables, each with the maximum of 60 A, can be
used to connect to the input connector at the bus bar. Each cable is connected with a 60 A circuit
breaker. One-wire EEPROM is employed to enable GCAI to recognize the URC accessory ID. CPS
can be used to program the relay patterns.
When installing URC, make sure to plan the installation carefully and leave additional room in the
front and rear of the box for cabling and accessory connections; and also to the sides of the radio so
that you may access and install the trunnion screws.
The recommended mounting location for URC is in the car trunk, either next to the transceiver or
within the area not further than 4.5 m away from the transceiver. Ensure that sufficient cooling is
provided. Do not cover URC with baggage, blankets, etc.
Do not backfeed power into URC.
Caution
3.1
Universal Relay Controller Mounting
The mounting location must be accessible and visible. Select a location that permits routing the
cable as directly as possible.
NOTE: For optimum URC performance, orient the mounting trunnion as shown in Figure 3-1.
Figure 3-1. Universal Relay Controller Orientation
An adjustable trunnion, which allows a number of mounting positions, is supplied for mounting the
URC. The installation must not interfere with the operation of the vehicle or its accessories.
3-2
Universal Relay Controller Installation Universal Relay Controller Mounting
Install the URC as follows:
1. Use the URC trunnion as a template to mark the mounting holes;
drill 5/32" holes. If mounting on a plastic surface, use a metal backing plate.
2. Attach the trunnion bracket using all four 10 – 16" x 5/8" self-tapping screws provided.
3. Temporarily install the URC (adjust for proper viewing angle) and fasten it to the trunnion with
two wing screws. Test the installation to ensure that the unit is securely locked in place.
USE FOUR MOUNTING SCREWS
ON ALL INSTALLATIONS
ADJUST THE UNIVERSAL RELAY
CONTROLLER TO DESIRED 
ANGLE AND SECURE WITH WING
SCREWS
TRUNNION
MOUNTING SURFACE
DRILL FOUR 5/32'' HOLES
IN MOUNTING SURFACE
IMPORTANT
USE A METAL BACKING PLATE
(NOT SUPPLIED) IF MOUNTING
TRUNNION ON PLASTIC OR
UNSTABLE SURFACE
Figure 3-2. Universal Relay Controller Installation Exploded View
6878215A01
Universal Relay Controller Installation O7/O9 Universal Relay Controller Cable Assembly
3.2
O7/O9 Universal Relay Controller Cable Assembly
3.2.1
Power Cable
3-3
1. Remove the cap nut of power cable gland assembly, and insert the power cable through the
cap nut and neoprene seal in the cable gland body. Use power cable with either AWG 6 or
AWG 8 only (recommended OD range of cable is 5.5 mm to 9 mm) that is able to withstand
80 A and 50 A respectively, to ensure water sealing of the controller. User can decide to
install one or two power cables based on the requirements. The power cables (A+) are not
supplied.
2. The loose end of the power cable with cable strip length 7.94 mm (5/16”) is then placed on
the power lug and secured down by a set screw. The cap nut is then reassembled with
tightening torque 18 lb-in.
3. The other end of the power cable should be connected to circuit breaker (Motorola part
number 40012006001) end which indicates "AUX" and then, to power supply on the other
end which indicates "BAT", instead of connecting to power supply directly.
4. Repeat steps 1 to 3 to install the second power cable, if required.
5. If only one power cable is installed, it is recommended to cover the other side of the power
cable gland with power cable gland seal with tightening torque 18 lb-in.
3.2.2
Ground Cable
1. Remove the cap nut of ground cable gland assembly, insert the ground cable through the cap
nut and then reassemble the cap nut. Use ground cable with AWG 14 only (recommended
OD range of cable is 2 mm to 4 mm) that is able to withstand 5 A. The ground cables (A+) are
not supplied.
NOTE: The ground is used to switch the relays, and not act as a ground to the actual device being
controlled.
2. The loose end of the ground cable with cable strip length 7.94 mm (5/16”) is then connected
to a two-pin terminal block. Both pins on the terminal block are inter-connected and either pin
can be used. The cap nut is then reassembled with tightening torque 7 lb-in.
Power Cable Gland
Ground Cable Gland
Figure 3-3. Power and Ground Cable Glands
6878215A01
3-4
Universal Relay Controller Installation O7/O9 Universal Relay Controller Cable Assembly
Counter Nut
Cable Gland Body
Gasket, Cable Gland
Neoprene Seal
Cap Nut
Figure 3-4. Cable Gland Assembly with Gasket
3.2.3
Wires
1. Assemble the wires into the lightbar gasket retainer and lightbar gasket. The URC can
support lightbars through control wires with outer diameter ranging from 
1.52 mm to 3.77 mm (0.06” to 0.148”), with wire gages ranging from AWG 12 – 20.
2. Each individual loose wire (prior to stripping off the wire jacket) needs to be inserted one at a
time through the chassis. Ensure the lightbar wire is straight before inserting the wire into the
chassis. Each wire is sealed individually by the radial gasket seal. When a thick wire (i.e.
AWG 14 wire or wire OD > 2.90 mm) is inserted through the chassis, there is potential torn at
the rubber gasket. Remove the rubber gasket residual and continue to the next step.
3. Thin wires 2.5 mm and below should be dressed into the retention feature using a black stick
(see Figure 3-5); thick wires above 2.5 mm should be routed above the retention feature.
Strip off the wire until 7.94 mm (5/16”) after the wire is inserted into the URC, and install the
wire into respective lightbar terminal block.
4. Cover the lightbar gasket retainer's hole with seal, gasket and ground cable gland, if no wire
is inserted.
WIRE RETENTION FEATURE
LIGHTBAR WIRE WITH DIAMETER
2.5 mm AND BELOW
LIGHTBAR WIRE
WITH DIAMETER
ABOVE 2.5 mm
Figure 3-5. Wires Installation
6878215A01
Universal Relay Controller Installation O7/O9 Universal Relay Controller Cable Assembly
3-5
Black Stick
Figure 3-6. Wire Installation with Black Stick
5. The lightbar gasket should be replaced at each reassembly of the wire.
NOTE: Use of other cable gages except as recommended in this manual may result in water
intrusion. Any reassembly of wire needs a new lightbar gasket replaced. If the current loading
for one wire is higher than 12 A, the wires should be splitted before being assembled to the
URC system. Wires kit (PMKN4109_) is provided to ease installation of the URC. Incorrect
use of the wires kit, e.g. improper connection at external loose end wires, may impact the
robustness of the URC.
Remove the wires and gasket residual inside the URC after the wire installation, before
closing the top housing of the URC.
3.2.4
O7/O9 to URC Cable
The O7/O9 to URC cable (Motorola part number 3064153H02) can be assembled either before or
after reassembling the top housing. Assemble the RJ45 port of the cable into the RJ45 connector on
the URC and turn the locking collar instead of cable, 90 degrees to the right to ensure it is locked
properly. After that, test whether the cable is locked properly or not by trying to pull out the cable.
Figure 3-7. O7/O9 to URC Cable Installation
6878215A01
3-6
Universal Relay Controller Installation
Notes
6878215A01
Chapter 4 Options and Accessories Installation
4.1
Dash-Mount Accessory Installation
NOTE: This configuration is not applicable for 100W radios.
For dash-mounted configurations, the accessories must be installed through the accessory
connector assembly that is located on the rear of the radio, adjacent to the power connector.
Motorola-approved accessories are supplied with male terminals crimped to a 20-gauge wire
specifically designed to fit the plug of the accessory connector assembly.
Insert the male terminal into the accessory connector assembly in the appropriate location and
connect the accessory connector assembly in the rear accessory port. Do not use other generic
terminals in the plug. Generic terminals can cause electrical intermittencies and may cause damage
to the plug.
4.1.1
Dash-Mount Emergency Pushbutton or Footswitch Installation
Mount the footswitch using the hardware that comes with the kit. Open the accessory cable
connector housing; remove the jumper wire. Connect the emergency switch wires to pins 14 and 15
(see Figure 4-1). Close the connector housing; route the finished cable from the switch location to
the control head location.
NOTE: The emergency footswitch should be attached with A+ unattached. 
A+ should be attached after successfully securing the screws in the connector.
NOTE 1
SPST NORMALLY CLOSED
EMERGENCY SWITCH
PIN 14
PIN 15
NOTE 1: REMOVE BLACK JUMPER WIRE INSIDE
ACCESSORY CONNECTOR HOUSING.
INSERT WIRES FROM EMERGENCY SWITCH
ACCESSORIES
CONNECTOR
20
13
26
J2 IN DASH MOUNT
J100 IN REMOTE MOUNT
EMER
21
GND
14
Figure 4-1. Emergency Switch Wiring Diagram
Caution
The radio is sold with correct accessory cables and jumpers in order to have emergency 
de-activated by default, regardless of the setting in CPS. However, if cables are not used, or if
jumpers are removed without replacing with an emergency accessory button/switch at one of
the accessory ports, the radio will power-up upon the application of A+. The display may not
show an indication that the radio is on, and this can result in an incorrect operation of the radio
as well as excessive current drain of the vehicle’s battery when the engine is off.
4-2
Options and Accessories Installation Remote-Mount Accessory Installation
4.1.2
Dash-Mount Horn and Lights (External Alarms) Relays
NOTE: For installations that use the horn/lights option, select a suitable location for mounting
(normally under the dash) and, referring to Figure 4-2, perform the following procedure:
1. Horn Relay – Connect the relay contacts across the horn ring switch, typically found in the
steering column. Open the accessory cable connector and connect the two control wires
(male pins) into locations 18 and 24 of the connector.
2. Lights Relay – Connect the relay across the head lamp ON/OFF switch, typically found in
the steering column. Open the accessory cable connector and connect the two control wires
(male pins) into locations 19 and 24 of the accessory connector.
CONNECT
ACROSS HORN
RING SWITCH
SPST
N.O.
RELAY
VIP OUT 1
PIN 18
12V COIL
SWB+
CONNECT
ACROSS HEAD
LAMP SWITCH
SPST
N.O.
RELAY
PIN 24
VIP OUT 2
PIN 19
ACCESSORIES
CONNECTOR
12V COIL
20
13
26
VIP OUT 2
(LIGHTS)
VIP OUT 1
(HORN)
SWB+
21
14
Figure 4-2. Horn/Light Wiring Diagram
4.2
Remote-Mount Accessory Installation
Perform the following installation procedure:
1. Select an appropriate place to mount the option or accessory hardware.
2. Route the accessory-to-control head cables under floor coverings or behind panels so that
the vehicle occupants do not snag or break the wires.
3. Attach wires from the accessory to the appropriate wire on the VIP cable (see Table 4-1 and
Table 4-2).
Caution
The radio is sold with correct accessory cables and jumpers in order to have
emergency de-activated by default, regardless of the setting in CPS. However, if
cables are not used, or if jumpers are removed without replacing with an emergency
accessory button/switch at one of the accessory ports, the radio will power-up upon
the application of A+. The display may not show an indication that the radio is on, and
this can result in an incorrect operation of the radio as well as excessive current drain
of the vehicle’s battery when the engine is off.
6878215A01
Options and Accessories Installation Remote-Mount Accessory Installation
4.2.1
4-3
Emergency Pushbutton or Footswitch Installation
Mount the switch using the hardware that comes with the kit. Connect the button/switch wires to a
ground pin and the emergency pin, removing the default jumper wire in the rear accessory cable.
The button/switch will short the pins when in-active. When the button/switch is pressed, its contact
opens, the emergency path is un-ungrounded and pulled-high inside the radio transceiver, and
detected by the processor. If an emergency accessory is used at either (or both) J2 connector and
J626 connector, all jumper wires, shorting emergency to ground, must be removed so button/switch
press can be detected.
In additional to removing the default jumper wires in accessory cables, you must also remove a
jumper part on the printed circuit board of the TIB, in order for the button/switch to be detected. On
the TIB PCB (both mid power and high power use the same TIB) a zero-ohm jumper is placed by
default so that the radio does not go into emergency when no cable is attached at either J2 or J626
in remote mount configuration. This jumper part, JU344, must be removed if either or both J2 and
J626 will have any type of emergency cable and button/switch attached. Otherwise, the processor
will never see emergency become un-grounded.
Figure 4-3. Emergency Jumper Removal in Remote Mount
1. Turn-off power to the radio system.
2. Detach the TIB from the radio transceiver.
3. Detach the TIB flex.
4. Remove TIB PCB from the plastic housing using TORX T10 screwdriver. Refer to the
disassembly procedure in the Basic Service Manual.
5. Located JU344, See diagram
6. Remove JU344 from the TIB PCB using a soldering gun. Clean off excess solder.
7. Reassemble the TIB following the Basic Service Manual procedure. Use 6-8 in-lbs torque
on each screw. Remember to include the TIB O-ring gasket.
8. Re-attach the TIB flex.
9. Re-attach the TIB to the radio transceiver.
10. Apply 6-8 in-lbs of torque to each screw to secure the TIB to the radio transceiver.
6878215A01
4-4
4.2.2
Options and Accessories Installation Remote-Mount Accessory Installation
Horn (External Alarm) Relay Installation
Mount the horn relay in a suitable location (normally under the dash). Connect the relay contacts
across the horn ring switch, typically found in the steering column. Connect the two control wires to a
SW B+ pin and a VIP OUT pin on the VIP connector.
4.2.3
Lights (External Alarm) Relay Installation
Mount the light relay in a suitable location (normally under the dash). Connect the relay contacts
across the head lamp ON/OFF switch. Connect the two control wires to a SW B+ pin and a VIP OUT
pin on the VIP connector.
4.2.4
Gunlock Installation
The O7 or O9 control head can program up to three gunlocks through the programmable buttons.
You can set the time for the momentary trigger using the time-out trigger button. Connect the relay
contacts across the gunlock switch to install the gunlock. Connect the two control wires to a SW B+
pin and a VIP OUT pin on the VIP connector.
It is recommended to install a failsafe/redundant bypass switch for the gunlock. It is suggested to use
a separate timer switch or a manual push-on button switch to activate the gunlock. Connect the
switch from the supply to the gunlock directly, as shown in Figure 4-4. Place the manual button at a
suitable and reachable location, yet not easily seen.
Car Battery
GND
Redundancy
Wiring
Transceiver
and
control head
Momentary or
time-out bypass
manual switch
GND
Gunlock
VIP Cable
GND
VIP OUT
Figure 4-4. Gunlock Switch Redundancy Diagram
6878215A01
Options and Accessories Installation Remote-Mount Accessory Installation
4.2.5
4-5
Horn-Ring Transfer
Configure the Horn Relay for either Negative Contact or Positive Contact as shown in section 6.3 of
the siren/PA manual (6881093C18). Program the designated VIP-OUT line for “Horn-Ring Transfer”
and program the designated VIP-IN line for “Horn-Ring”.
Figure 4-5 shows wiring diagrams for connecting the Horn-Ring via a transfer relay for both negative
and positive ground systems. Refer to the siren/PA manual (6881093C18) for more information.
Under Hood
Horn Relay
Horn
Break
Here
Break
Here
To Horn
Horn
Ring
Horn
Ring
+ 12V
+ 12V
N.C.
N.C.
COM.
COM.
N.O.
N.O.
To SW B+ at
VIP Connector
To Control Head VIP
Input Programmed
for Horn-Ring
To DIG. GND at
VIP Connector
To Control Head VIP
Output Programmed for
Horn-Ring Transfer
To Control Head VIP
Output Programmed for
Horn-Ring Transfer
To SW B+ at
VIP Connector
Any SPDT Relay with 12V Coil
and Suitable Contact Ratings for
Vehicle Installation
To Control Head VIP
Input Programmed
for Horn-Ring
Positive-Contact Horn-Ring
Negative-Contact Horn-Ring
Normally-Open
Momentary
Contact Pushbutton
To VIP Input Programmed for Horn-Ring
To DIG. GND at VIP Connector
Pushbutton Connections
NOTE: Locate Pushbutton
in a Location Convenient to
the Driver
Figure 4-5. Siren/PA Horn-Ring Connections
4.2.6
Record Audio Out Jack of Transmit and Receive Audio
The use of Power Cable kit HKN6187_ (see Figure 2-47) provides access to both the transmitted
audio speech, as well as the received audio speech. This can be recorded with a standard tape
recorder using a 2.5 mm connector.
4.2.7
Earphone Jack
The use of Power Cable kit HKN6187_ (see Figure 2-47) provides the ability to use a standard
earphone/headset instead of the external speaker. Once a cable is plugged into this 2.5 mm jack, the
external speaker attached at the control head will turn mute.
6878215A01
4-6
4.2.8
Options and Accessories Installation Vehicle Interface Port Overview
USB Data Cables
It is recommended that the USB 1.5 meter data cable HKN6163_ is used for both dash mount
configurations (at J2 connector) and for remote mount configurations (at J100 connector). This is
because the HKN6163_ has the emergency jumper present, which is necessary for correct dash
mount configurations. For interfacing at the MMP port, use Cable HKN6184_ which is a USB device
cable.
The USB 4 meter (15 feet) data cable enable HKN6172_ is recommended for remote mount
configurations only (at J100).
If the customer intends to use the HKN6172_ for dash mount configurations (at J2), the cable’s 
26-pin connector must be opened and an emergency jumper-wire placed across pins 14 and 15.
Refer to Figure 4-1.
4.2.9
RS232 Cables
The following are RS232 cables. Although not compatible with CPS radio reading or programming,
they can be used for interfacing with RS232 accessories or RS232 computer programs. HKN6122_
is an RS232 serial COM port computer interface cable from J600 connector. HKN6160_ is a 6 feet
dash RS232 cable from J2 connector. HKN6161_ is a 20 feet dash RS232 cable from J2 connector.
HKN6183_ is a 4 meter cable from MMP connector.
4.3
Vehicle Interface Port Overview
The Vehicle Interface Port (VIP) allows the control head to operate outside circuits and to receive
inputs from outside the control head. There are three VIP outputs which are used for relay control.
There are also three VIP inputs which accept inputs from switches (remote mount only).
Radio VIP Cable
Pin (HKN6196_)
Number Wire Color
Function
J400-1
RED
J400-2
GREEN
SWB +
J400-3
NO PIN
J400-4
"VIP" detect: GPIO=HIGH
GND
J400-5
BLUE
VIP_OUT_1
J400-6
YELLOW
VIP_OUT_2
J400-7
BLACK
VIP_OUT_3
J400-8
WHITE
VIP_IN_1 (VIP_IN GPIO)
J400-9
ORANGE VIP_IN_2 (VIP_IN GPIO)
J400-10
VIOLET
VIP_IN_3
Figure 4-6. Remote Control Head Pinouts
Figure 4-7. HKN6196_ VIP Connector Detail
6878215A01
Options and Accessories Installation Vehicle Interface Port Overview
4.3.1
4-7
VIP Output Connections
The VIP output pins are on the back of the control head (J100 and J400), or the rear accessory port
(J2), as shown in Figure 2-10, Figure 4-12 and Figure 4-13, respectively. Use these connections to
wire control relays. One end of the relay should connect to switched B+ voltage, while the other side
connects to a software controlled ON/OFF switch inside the control head. The relay can be normally
on or normally off depending on the configuration of the VIP outputs. There are three VIP output
connections, as follows:
Table 4-1. VIP Output Connections
J400
VIP OUT #
J2
J100
SW B+ Pin
Number
On/Off
Switched Pin
Number
SW B+ Pin
Number
On/Off
Switched Pin
Number
SW B+ Pin
Number
On/Off
Switched Pin
Number
Red 1
5 (Blue)
24
18
24
18
Red 1
6 (Yellow)
24
19
24
19
Red 1
7 (Black)
NA
NA
NA
NA
The function of these VIP outputs can be field programmed in the control head. Typical applications
for VIP outputs are external horn/lights alarm and horn ring transfer relay control. For further
information on VIP outputs, see the control head programming manual.
VIP OUT 1 and VIP OUT 2 can be accessed from either J100 or J400 connectors. This is to allow a
previously wired VIP OUT at J2 to move easily to J100. However, when any cable is inserted into
J400, J100 VIP OUTs are disabled.
When installing relays to the VIP OUT lines, a diode is necessary to prevent damage to the transistor
or MOSFET, due to “back EMF” when the field collapses on the relay coil. Some vendor relays
already come with this diode built-in, and other relays require the customer to install it. Figure 4-8
shows the proper placement of the diode across the relay coil. The transistor or MOSFET is located
inside the radio or the D.E.K. box.
Relay
SW B+
Protection
Diode
N.C.
N.O.
VIPout
Note:
To 'activate' a VIPOUT, you have to ground the VIPOUT, such that the
current now flows thru the relay coil to GND through a MOSFET inside
the radio or control head, which causes the relay wiper to toggle. The
MOSFET of a VIPOUT should never be used to directly drive an
accessory. The MOSFET should be used to control an external relay.
Figure 4-8. Relay Coil
NOTE: See Appendix A: Replacement Parts Ordering to order relay’s for your VIP OUT applications.
Example relay hardware: TLN4533_ (relay without internal diode), HLN6969_ (relay with
internal back EMF protection diode), and HKN4258_ (relay wiring cable).
6878215A01
4-8
Options and Accessories Installation Vehicle Interface Port Overview
4.3.2
VIP Input Connections
The VIP input pins are only available on the back of the control head (remote mount). These
connections control inputs from switches. One side of the switch connects to ground while the other
side connects to a buffered input on the control head. The switch can be normally closed (NC) or
normally open (NO) depending on the configuration of the VIP inputs. There are three VIP input
connections, as follows:
Table 4-2. VIP Input Connections
J400
VIP IN #
Ground Pin
Number
J2
On/Off Switched
Pin Number
Ground Pin
Number
On/Off Switched
Pin Number
2 (green)
8 (white)
NA
NA
2 (green)
9 (orange)
NA
NA
2 (green)
NA
NA
10 (violet)
NOTE: Remote Mount requires the VIP cable to be attached to J400.
MCH installations require the VIP inputs to be connected to the head assigned ID #1. See
Section 2.2.2.5: “Setting the Initial Control Head ID” on page 2-29 for further information.
Caution
APX mobile radios equipped with the following features are capable of transmitting
automatically, even if the radio is turned off:
• Automatic Vehicle Location
• Other Special Data Products
All APX mobile have accessory connector pins 14 and 15 connected together to allow
the radio to power down. Opening this connection by REMOVING the accessory
connector, or otherwise failing to maintain a normally closed path, could, if left
unchecked, drain the vehicle battery, and possibly cause transmissions to occur.
6878215A01
Options and Accessories Installation Compatibility of Emergency when Attaching a Siren
4.4
Compatibility of Emergency when Attaching a Siren
When using emergency footswitch or pushbutton with siren/PA configuration, REMOVE pin 8
(emergency) from the siren connector of the HKN4363_ siren cable as follows:
Siren Cable
Figure 4-9. Field adjustment for Emergency Operation with Siren Accessory
1. Remove the knob from the siren/PA cable connector.
2. Remove all four screws from the connector in the siren/PA cable.
3. Open the connector cap and locate pin 8.
4. Using the contact removal tool (6684690C02), remove pin 8 from the connector.
5. Put the connector cap in place and proceed to reinstall the four screws and the knob.
Pin 8
22
37
15
14
21
20
28
27
36
35
13
12
11
10
18
17
16
19
26
34
33
32
25
31
24
23
30
29
Figure 4-10. Location for Pin 8
6878215A01
4-9
4-10
Options and Accessories Installation Accessory Connector Assembly Details (P2) (All Models Except 100W)
4.5
Accessory Connector Assembly Details (P2)
(All Models Except 100W)
The APX mobile accessory connector assembly is mounted on the right rear of the radio, opposite
the antenna and adjacent to the power connector. It is fastened to the radio via jackscrews and held
together by the two cover screws. It is a multi-functional connector that allows for many different
types of adaptations. All approved accessory wires are securely strain-relieved through the exiting
slots at the back of the accessory connector assembly. The terminations that are supplied with all
accessories are designed to be fully engaged and locked into the plug connector (6680163F01).
They can also be detached for service with the assistance of a terminal removal tool. The accessory
connector assembly can be serviced multiple times for future installation upgrades.
The accessory connector assembly, supplied with every APX mobile dash-mounted radio, is
equipped with a 26-pin plug assembly, two covers, two jackscrews, two cover screws, one
emergency jumper, one ignition sense cable assembly, and one speaker pigtail. The jumper is
provided to complete the circuit for emergency mode. If this circuit becomes open, the radio will be
set to emergency mode.
39800834F03 is the crimping pin part number for use with any wires used inside the accessory cable
connector.
4.5.1
Disassembly and Assembly
4.5.1.1 Disassembly
1. Disconnect the negative terminal from the vehicle’s battery. Make sure that the battery cable
is secured such that it will not power the vehicle’s electrical system.
2. Unscrew both jackscrews completely.
3. Pull the accessory connector assembly out from the radio.
4. Loosen both cover screws, but do not remove them completely.
5. Pull the jackscrews away from the plug and hold them back.
6. Pry apart the accessory connector assembly covers.
7. Attach any new wire to its proper location by pushing in the male terminal. When you hear a
pop, the wire is engaged. To verify that the wire is engaged, tug gently on the wire and be
sure it does not come out. Do not overload the wire: severe damage will result to the plug.
6878215A01
Options and Accessories Installation Accessory Connector Assembly Details (P2) (All Models Except 100W)
4-11
4.5.1.2 Assembly
1. Place the plug in one cover. Be sure that the flange of the plug is in the slot of the cover. 
See Figure 4-11.
2. Push the jackscrew through the plug to hold it in.
3. Position each wire across the strain-relief features in the cover. Avoid damaging loads on the
plug by allowing some slack in each wire in the accessory connector assembly’s wire
chamber.
4. Place the second cover onto the plug. Be sure that the flange is protruding through both
covers.
Figure 4-11. Exploded View of Accessory Connector Assembly (HLN6863_)
5. Squeeze the covers together bending the wires in the strain-relief features. You may need a
pair of pliers to seat the assembly covers.
6. Once the covers are fully seated, fasten them with the cover screws. Tighten the screws
firmly but do not over-tighten them. Be sure none of the wires are pinched.
7. Reattach the accessory connector assembly to the back of the radio and fasten it by 
finger-tightening the jackscrews to prevent any loosening.
NOTE: See APX Mobile Basic Service Manual (6875964M01) for more detailed descriptions of these
pins and other connectors located in the APX mobile radio.
6878215A01
4-12
4.5.2
Options and Accessories Installation Memory and Three-Day Secure Key Retention Option
Adapter Cable
If you are planning on installing an APX mobile radio as a replacement for an ASTRO Spectra radio,
the following adapter cables are available:
Part Number
Description
HKN6158_
Cable, Audio Adapter Kit
HKN6159_
Cable, Data Adapter Kit
NOTE: The adaptor cables can only be connected to J2 in the rear of the transceiver.
Use the HKN6158_ audio adapter kit cable if your vehicle was formerly wired for an ASTRO Spectra
or ASTRO Spectra Plus radio, and used the rear cable pins as shown in Figure 4-12.
SPKR
LO GND
IGNITION
SPKR
HI +
15
14
13
EMER
12
11
PTT
10
VIP OUT 1
N.C.
MIC HI
N.C.
VIP OUT 2
SWB+
N.C.
N.C.
DISC.
AUD
Figure 4-12. Rear Accessory Connector Audio Configuration
Use the HKN6159_ data adapter kit cable if your vehicle was formerly wired for an ASTRO Spectra
or ASTRO Spectra Plus radio, and used the rear cable pins as shown in Figure 4-13.
SPKR
LO DIG
GND
SPKR
HI +
15
CTS-ASTRO
VIP OUT 2 RTS_DCE
IGNITION
SWB+
14
BUS+
13
12
EMER
11
VIP OUT 1
10
BUS-
RTS-ASTRO TX-ASTRO RX-ASTRO BUSY
CTS_DCE
RX_DCE
TX_DCE
Figure 4-13. Rear Accessory Connector Data Configuration
You must attach the correct adapter. Installing the wrong adapter may cause damage to the data
communication circuitry inside your radio. If you are unsure of the pinout of your former wiring
harness, please consult your ASTRO radio installation technician.
4.6
Memory and Three-Day Secure Key Retention Option
For the installation or removal of the Memory or 3-Day Secure Key Retention Options 
(MHLN6999_ and MHLN7000_), see the APX Mobile Basic Service Manual (6875964M01).
NOTE: The Three-Day Secure Key Retention Option is not applicable for APX 2500/APX 4500.
6878215A01
Chapter 5 Motorcycle Radio Installation
NOTE: The motorcycle radio installation is not applicable for 100W radios, APX 4500 radios and O9
control heads.
5.1
Motorcycle Radio Description
The motorcycle model includes all the same components in the standard radio, with the exceptions
listed in the model charts in the APX Mobile Basic Service Manual (6875964M01). The following
paragraphs describe the unique items provided with the motorcycle models.
NOTE: The APX Mobile Basic Service Manual (6875964M01) includes complete parts lists and parts
numbers for all parts shown in the exploded views in this chapter.
A small label is included with the motorcycle radio, which can be placed on the radio to identify
it as a motorcycle radio. The label should be placed on a flat and protected area to avoid
damage during handling. See Figure 5-1.
Figure 5-1. Identification of a Motorcycle Radio by Using a Label
5.1.1
Transceiver Enclosure
The transceiver is mounted in the weather-resistant enclosure that consists of a bottom housing and
a hinged top cover. The top cover has a locking latch that requires a key to open. The enclosure is
mounted above the rear motorcycle wheel, oriented so that the lock is forward and the hinged cover
opens toward the rear of the motorcycle. The bottom housing has a grommeted hole for cable entry
and weep holes to permit water drainage.
The enclosure is mounted on the motorcycle with a universal mounting plate and shock and vibration
isolators. A large, braided ground-strap (installed between the mounting plate bolts and the
motorcycle frame) grounds the transceiver.
5.1.2
Control/Display Unit
All radio functions, except push-to-talk (PTT), are activated from the control head, which also is
weather-resistant. The control head and the external speaker are mounted for easy access near the
center of the handlebars. The control head is positioned for unobstructed viewing, and it may be
tilted on the horizontal axis for ease of viewing. The microphone cable port on the front of the control
head is plugged and is not used.
5-2
Motorcycle Radio Installation Motorcycle Radio Description
5.1.3
Control Head Cable
The control-head cable connects the control head to the transceiver. The cable is routed along the
motorcycle’s frame and has weather-resistant connections at both ends. Excess cable is coiled
under the transceiver inside the weather-resistant enclosure.
Each end of the cable is strain-relieved with jackscrews at the control head and the transceiver.
The cable is shielded to reduce the effects of radio frequency interference and ignition sense noise.
5.1.4
Microphone
A weather-resistant, palm microphone and coiled cord plug into a pigtail connector on the control
cable. The microphone attaches to a hang-up bracket located within easy reach of the motorcycle
rider. The coiled cord is long enough to be operated by someone standing next to the motorcycle, yet
short enough to not interfere with the motorcycle’s steering or operation.
5.1.5
Keypad Mic
The Mobile Keypad Microphone (Mic) is a full keypad handheld microphone. The keypad on this
microphone is intended to assist in navigating through the menus on its parent device, as well as
entering information such as phone numbers and menu picks.
5.1.6
External Speaker
A 3.2-ohm, 10-watt-rated-audio-power, external speaker is mounted on the front of the motorcycle.
The speaker cable is routed along the motorcycle frame to the transceiver’s rear accessory
connector. A sealed, weather-resistant, speaker-muting (toggle) switch is mounted on top of the
speaker.
The external speaker connects to the rear accessory connector of the transceiver.
5.1.7
Headset Capability
The motorcycle radio is compatible with headset accessories that would provide hands-free
operation of the radio. Motorola does not manufacture headset equipment, but provides the
interconnection for headset equipment with the motorcycle radio. Aftermarket headset equipment is
available through Motorola (see Appendix A: Replacement Parts Ordering).
Caution
5.1.8
To avoid possible injury to hearing, the audio setting in the mobile radio MUST be
confirmed, if the Motorola mobile radio is used with any motorcycle helmet headset.
See CPS Help for details.
Antenna
The antenna(s) are mounted on top of the transceiver’s weather-resistant enclosure. 
The enclosure’s metal lining acts as the antenna’s ground plane.
5.1.9
Ignition Sense (ACC) Wire
The ignition sense wire connects to the motorcycle’s fuse box and is routed along the motorcycle
frame to the transceiver’s rear accessory connector.
The radio is wired so that transmission is inhibited if the motorcycle’s ignition sense switch is off. 
If the PTT switch is pressed with the ignition sense off, a low-frequency tone sounds. The receiver is
controlled by the control head on/off switch.
6878215A01
Motorcycle Radio Installation Installation Overview
5.2
Installation Overview
5.2.1
General
5-3
All APX mobile radios are tested and inspected before shipment. It is, however, suggested that the
transmitter frequency, deviation, and power output be checked at the time of installation. It is the
license holder’s responsibility to ensure that the operating parameters of his station comply with
applicable laws governing radio communications equipment. For tests and alignment procedures,
refer to the appropriate service manual (refer to “Related Publications” on page vi).
Generally, the installation of the motorcycle radio takes place in the following parts:
• Mounting the universal mounting plate and related hardware at the rear of the motorcycle;
• Mounting the control head, speaker, microphone, and related hardware forward on the
motorcycle;
• Routing the power cable, control-head cable, speaker cable, and ignition sense cable to the
weather-resistant enclosure;
• Mounting the weather-resistant enclosure and radio chassis, and connecting the cables;
• Mounting the antenna(s) to the weather-resistant enclosure.
A universal mounting plate, supplied by Motorola, is first mounted to either a motorcycle carrier at the
rear of the motorcycle or to the rear frame of the motorcycle itself. The mounting procedures for the
universal mounting plate vary from motorcycle to motorcycle. Therefore, the procedures given in this
manual for installing the mounting plate may not specifically apply, but are provided for guidance.
The control head, speaker, and microphone are mounted forward on the motorcycle, on or near the
steering column. There are several possible mounting configurations which use a combination of
Motorola and customer-built brackets. These configurations are outlined in this manual. Because of
the large number of motorcycle makes and models in existence, the customer-built brackets are
necessary to tailor the mounting of the Motorola equipment to the particular motorcycle being used.
Suggestions for customer-built brackets are given in this manual.
The power cable, control-head cable, speaker cable, and ignition sense cable are routed to the
weather-resistant enclosure position. The enclosure and the radio chassis are then mounted. Special
care is required when connecting cables to the radio equipment within the enclosure.
6878215A01
5-4
5.2.2
Motorcycle Radio Installation Installation Overview
Important Installation Hints
Consider the following when mounting the radio components:
• Excess lengths of control-head, power, ignition sense, and speaker cables must be routed in
the enclosure as shown in Figure 5-16.
• All components must be mounted securely in order to withstand the constant and sometimes
severe vibration experienced on a motorcycle.
• No cantilever action, which could cause severe vibration, should be generated in the mounting
hardware.
• The control head and microphone must be placed for ease of accessibility by the motorcycle
operator.
• Forward components (control head, microphone, and speaker) should not interfere with visual
or physical access to controls and instruments.
• Forward components should not interfere with the handling of the motorcycle.
• Cabling between the control head and the radio chassis should be run to minimize interference
with operator movements.
• The weather-resistant enclosure should be placed to avoid any interference with the motorcycle
operator.
• Electrical continuity must be present through the enclosure shock mounts to the motorcycle
frame for proper electrical and RF grounding.
• The antenna(s) are designed for mounting on the top of the weather-resistant enclosure.
• Only the supplied microphone mounting clip should be used to ensure secure mounting of the
microphone. This clip has a very strong spring to ensure positive retention of the microphone
over rough terrain. Also, there must be electrical continuity from this clip to the motorcycle
frame for DC grounding.
• Direct access to the microphone should be provided from both sides of the motorcycle.
• Sufficient slack in the microphone coiled cord should be allowed so as not to impede steering.
• Mounting hardware must be stainless steel to prevent corrosion.
• If an extra length of cable is used to extend the microphone, ensure that the added capacitance
does not interfere with the operation of the radio.
6878215A01
Motorcycle Radio Installation Installation Overview
5.2.3
5-5
Parts Identification
The following installation procedures refer to Figure 5-2 through Figure 5-17. Detailed descriptions of
the mounting hardware used in each procedure are provided in parts lists located in the exploded
views located in the APX Mobile Basic Service Manual (Motorola publication part number
6881096C73). Those parts supplied by Motorola are contained in one of the following kits:
• Motorcycle Weather-Resistant Microphone
• Motorcycle Weather-Resistant Speaker with Mute Switch
• Motorcycle Weather-Resistant Speaker with Keypad Mic
• Motorcycle Hardware Kit SECURENET or Motorcycle Hardware Kit
• Motorcycle Power Cable Kit
• Motorcycle Mounting Kit
• Weather-Resistant Enclosure (Black)
• Antenna
5.2.4
Order of Installation
Before starting the installation, familiarize yourself with the mounting hardware (see Figure 5-2
through Figure 5-17). Perform the installation procedures in the order that follows.
1. Install the universal mounting plate on the motorcycle.
2. Install the control head and speaker.
3. Install the microphone hang-up clip.
4. Install antenna base and cable onto enclosure.
5. Install the cables.
6. Install the weather-resistant enclosure on the universal mounting plate.
7. Route the cables inside the weather-resistant enclosure.
8. Install the transceiver in the weather-resistant enclosure.
9. Install the antenna(s) on the enclosure.
6878215A01
5-6
5.3
Motorcycle Radio Installation Installing the Universal Mounting Plate
Installing the Universal Mounting Plate
The universal mounting plate, supplied with the motorcycle radio, must be mounted on the
motorcycle first. It provides the base on which the weather-resistant enclosure is to be mounted. 
The method used for mounting the plate depends on the make and model of the motorcycle and
whether the plate is mounted to a carrier or to the motorcycle chassis. After the plate has been
securely mounted to the motorcycle, mounting the weather-resistant enclosure onto the plate is
straightforward.
Figure 5-2 illustrates the universal mounting plate mounted to a motorcycle carrier. Since there are
so many makes and models of motorcycles and motorcycle carriers, it is impossible to give specific
step-by-step instructions for mounting the universal mounting plate. However, noting the following
considerations will aid in the installation procedure.
• A minimum of holes are predrilled into this plate as supplied. Mounting holes must be drilled as
required for the particular motorcycle on which the plate is being mounted.
• The universal mounting plate should be mounted on the motorcycle in such a manner that the
later mounting of the weather-resistant enclosure will not interfere with the motorcycle seat
back, with any other obstacles, or with the motorcycle operator. The enclosure may be
temporarily bolted to the universal mounting plate and the unit positioned on the motorcycle to
ensure the above criteria are met.
• To ensure a good grounding path from the universal mounting plate to the motorcycle carrier or
frame, stainless steel lock washers must be used with the mounting hardware in two areas to
score through the paint on the universal mounting plate and on the carrier or frame, thereby,
providing good electrical contact with the underside of the motorcycle carrier or motorcycle
frame.
Figure 5-2. Universal Mounting Plate Installation (Part of Radio Enclosure Kit)
Follow the procedures below to mount the universal mounting plate to the motorcycle 
(see Figure 5-2).
1. Determine the mounting position for the mounting plate.
2. Determine whether stainless steel spacers are required for clearance in mounting the plate.
3. Drill four 9/32-inch holes in the mounting plate and the corresponding motorcycle carrier or
chassis for mounting the plate.
4. Attach the universal mounting plate to the motorcycle using four machine screws, eight lock
washers, and four nuts. Tighten screws securely. The lock washers must cut through the
paint on the plate and motorcycle carrier or frame to ensure a good ground path.
6878215A01
Motorcycle Radio Installation Installing the Speaker and Control Head
5.4
5-7
Installing the Speaker and Control Head
NOTE: To disable the internal speaker of the O2 Control Head, please refer to Section 2.5.1: “Internal
Speaker Disassembly” on page 2-44.
The control head mounting location and configuration is determined largely by the make and model
of motorcycle. Two different mounting configurations are described below. One involves mounting
the speaker and control head together as a unit using the combination speaker/control-head bracket
(shown in Figure 5-4) supplied by Motorola. Alternately, the control head may be mounted by itself
using a smaller control-head bracket supplied by Motorola. In this case, the speaker is mounted
elsewhere. This section outlines installation procedures for each configuration mentioned above.
The customer (or installer) is in the best position to determine the most appropriate mounting
configuration for the control head and speaker based on the particular motorcycle on which the
equipment is to be mounted.
When determining its location, position the control head so that it is clearly visible and
within easy reach of the motorcycle operator.
Caution
Figure 5-3. Motorcycle Control Head Cabling (3075217A01)
6878215A01
5-8
5.4.1
Motorcycle Radio Installation Installing the Speaker and Control Head
Handlebar Installation with Speaker and Control Head Mounted Together
Figure 5-4 illustrates the combination speaker/control head bracket. This combination bracket is
used only when the control head and speaker are to be mounted as a unit. Also illustrated in
Figure 5-4 is a handlebar-mounting bracket which may be required if the combination speaker/
control-head bracket cannot be easily mounted to the motorcycle. In this case the 
handlebar-mounting bracket is mounted to the motorcycle, and the combination bracket is then
mounted to the handlebar-mounting bracket.
Figure 5-4. Handlebar Installation with Speaker and Control Head Mounted Together
6878215A01
Motorcycle Radio Installation Installing the Speaker and Control Head
5-9
Provision has been made on the combination speaker/control-head bracket for mounting the
microphone hang-up clip. If that mounting is desired, the hang-up clip must be attached to the
bracket before installing the control head and speaker. See Section 5.6: “Installing the Microphone
Hang-Up Clip” on page 5-14 for the hang-up clip procedure. Install the speaker and control head as
described below.
1. Determine the location where the speaker/control head is to be mounted. Consider how the
speaker/control-head bracket may be mounted, and whether or not a handlebar-mounting
bracket is needed. Take care to select a location that is not only mechanically convenient, but
is located for ease of operation.
NOTE: The angle at which the handlebar-mounting bracket or the speaker/control-head bracket is
mounted to the motorcycle determines the firing angle of the speaker.
2. If the handlebar-mounting bracket is needed, install it first.
3. Mount the speaker/control-head bracket, either directly to the motorcycle, or, if used, to the
handlebar-mounting bracket, using four stainless-steel machine screws, lock washers, and
nuts.
4. Mount the 9-pin D-connector end of the motorcycle control-head cable to the speaker/control
head bracket, using two machine screws, flat washers, and nuts. (Cable routing directions
appear later in this section.)
5. Mount the speaker on the speaker/control-head bracket, using two machine screws and lock
washers. Torque these screws to 20 in-lbs.
6. Attach the control-head cable to the control head and tighten the locking screws on the
connector. This connection must be made before you mount the control head in the bracket.
(Cable routing directions appear later in this section.)
7. Mount the control head to the bracket, using two machine screws, lock washers, and flat
washers.
8. Adjust the control head viewing angle by loosening its mounting screws and rotating the
control head to the desired angle. Then, retighten screws to 20 in-lbs torque. This concludes
the speaker/control-head installation.
5.4.2
Fuel Tank Console Installation with Speaker and Control Head Mounted
Together
Some motorcycles provide a console for mounting radio equipment. This console is attached to the
top of the fuel tank. With the use of a mounting bracket, screws, nuts, and lock washers, the
combination speaker/control-head bracket can be mounted to this console. Figure 5-5 illustrates this
type of mounting.
The console attachment screws must be removed, and the console must be lifted slightly from the
fuel tank to gain access in order to attach mounting hardware, and to route cables later.
In this installation, the microphone (mic), mic hang-up bracket, and mic extension bracket will
interfere with handlebar travel.
Installation using this method is the same as in Section 5.4.1: “Handlebar Installation with Speaker
and Control Head Mounted Together” on page 5-8.
6878215A01
5-10
Motorcycle Radio Installation Installing the Speaker and Control Head
Figure 5-5. Fuel Tank Console Installation with Speaker and Control Head Mounted Together
6878215A01
Motorcycle Radio Installation Installing the Speaker and Control Head
5.4.3
5-11
Handlebar Installation with Speaker and Control Head Mounted Separately
It may be necessary to use the smaller control head bracket (part number 07-80127N02) and mount
the speaker and microphone hang-up clip in another location on the motorcycle.
Before installing the control head using the bracket described above, the control-head end of the
control-head cable should be temporarily fastened to the control head, and the control head fastened
to its bracket. Motorola-supplied spacers and the mic-cable bracket are required to mount the control
head to the handlebar. This mic-cable bracket has holes to mount the microphone-cable connector.
Follow these procedures when mounting the smaller control-head bracket:
1. Determine the location at which the control head is to be mounted. Take care to choose a
location that is not only mechanically convenient, but is located for ease of operation.
2. Securely mount the Motorola-supplied spacers, mic-cable bracket, and small control-head
bracket to the handlebars.
3. Mount the 9-pin D-connector end of the motorcycle control-head cable to the mic-cable
bracket, using two machine screws, flat washers, and nuts. (Cable routing directions appear
later in this section.)
4. Attach the control-head end of the cable to the control head and tighten the locking screws on
the connector.
5. Mount the control head to the small control-head bracket, at the proper viewing angle, using
two wing screws. Tighten firmly. This concludes the control-head installation.
6878215A01
5-12
Motorcycle Radio Installation Installing the Speaker and Control Head
Figure 5-6. Handlebar Installation with Speaker and Control Head Mounted Separately
5.4.4
Fuel Tank Console Installation with Speaker and Control Head Mounted
Separately
The control head may be mounted to the fuel tank console using the smaller control-head bracket
and spacers/hardware. In this configuration, the microphone cable connector may be attached
directly to the console, eliminating the need for a custom bracket.
6878215A01
Motorcycle Radio Installation Installing the Speaker and Control Head
5-13
Figure 5-7. Fuel Tank Console Installation with Speaker and Control Head Mounted Separately
Installation is the same as detailed in Section 5.4.2: “Fuel Tank Console Installation with Speaker and
Control Head Mounted Together” on page 5-9 and Section 5.4.3: “Handlebar Installation with
Speaker and Control Head Mounted Separately” on page 5-11.
6878215A01
5-14
5.5
Motorcycle Radio Installation Installing the Speaker
Installing the Speaker
NOTE: To disable the internal speaker of the O2 Control Head, please refer to Section 2.5.1: “Internal
Speaker Disassembly” on page 2-44.
Use the following procedure when the speaker is mounted separate from the control head. The
speaker bracket supplied with the speaker may be used alone if a suitable location can be found, or
if necessary, a customer-supplied bracket may be fabricated for mounting the speaker.
1. Determine the location in which the speaker is to be mounted and whether there is a
requirement for a customer-supplied bracket.
2. Fabricate a bracket if required. Use the Motorola-supplied speaker bracket as a template for
drilling mounting holes. Also drill holes in the fabricated bracket for mounting to the
motorcycle.
3. Mount the fabricated bracket to the motorcycle chassis.
4. Mount the Motorola-supplied bracket to the fabricated bracket using two machine screws, flat
washers, lock washers, and nuts.
5. Mount the speaker to the speaker bracket using two wing screws. Directions for speaker
cable routing appear later in this section. Speaker mounting is now complete.
5.6
Installing the Microphone Hang-Up Clip
Install the hang-up clip either on the supplied microphone extension bracket or on the side of the
speaker/control head bracket. Both methods are shown in Figure 5-4. Determine the mounting
location and install as described in the following paragraphs.
NOTE: Wherever the hang-up clip is mounted, it must be DC grounded for proper operation. After
mounting the clip, be sure there is electrical continuity between the clip and the motorcycle
chassis.
5.6.1
Extension Bracket Mounting
Using this method, you can mount the clip so that it faces the operator.
1. Attach the bracket to the speaker/control-head bracket using two machine screws, four lock
washers, and two nuts as shown in Figure 5-4.
2. Torque nuts to 20 in-lbs torque.
3. Fasten the hang-up clip to the extension bracket using two machine screws, lock washers,
and nuts as shown in Figure 5-4.
4. Torque nuts to 20 in-lbs torque.
5.6.2
Speaker/Control Head Bracket Side Mounting
Attach the hang-up clip to the left side of the speaker/control-head bracket using two machine
screws, lock washers, and nuts as shown in Figure 5-4. Torque nuts to 20 in-lbs. torque.
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Motorcycle Radio Installation Installing Antenna Base and Cables
5.6.3
5-15
Other Hang-Up Clip Mounting
To mount the microphone hang-up clip in another location, a customer-supplied bracket may be
used. Suggested locations include the handlebars, fuel-tank console, or any location which provides
easy access to the microphone without blocking controls and indicators and without interfering with
motorcycle handling. See Figure 5-5, Figure 5-6, and Figure 5-7 for alternative microphone hang-up
clip mounting methods.
1. Fabricate a bracket, then secure it to the motorcycle.
2. Use two machine screws, lock washers, and nuts to secure the hang-up clip to the
customer-supplied bracket. Ensure that the microphone clip is DC grounded to the
motorcycle chassis (a grounding lug and strap are provided in the hang-up clip kit for this
purpose) – this is essential for proper radio operation.
5.7
Installing Antenna Base and Cables
NOTE: Antenna hole placement and cable routing in 7/800, VHF and UHF antenna manuals are not
applicable for the APX Series.
The GPS antenna assembly must be done after the removal of the metal liner but before
reinstalling the APX Series liner.
1. Open the top cover of the weather-resistant enclosure.
2. Uninstall the metal liner that is shipped attached to the weather-resistant enclosure. This liner
has one depressed area at the top of the enclosure liner just toward the rear of the enclosure.
This metal liner is not used with APX Series products.
3. Place the metal liner with two round, depressed areas toward the enclosure hinge and 5/8”
hole near the front of the housing, inside the top cover, and align the six slots in the metal
liner with the screw holes in the top housing.
4. The metal liner of the enclosure’s top cover acts as a ground plane for the antenna.
5. Locate the two round, depressed areas about 3 inches in diameter in the metal liner near the
enclosure hinge. Referring to Figure 5-8, these areas are either Band 1 or Band 2 depending
on the antenna port they align to. Refer to band markings on radio for the proper antenna port
location. For the GPS antenna, use the 5/8” hole near the front of the housing near the lock.
Top Cover for APX Radios
Band 1 Antenna Port
Antenna Port
Band 2 Antenna Port
GPS
Band 2
Antenna
Band 1
Antenna
ASTRO 25 Subscribers
APX 2500/APX 4500
Figure 5-8. Location of Band 1 or Band 2 (Depending on the Antenna Port They Align to)
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5-16
Motorcycle Radio Installation Installing Antenna Base and Cables
6. These holes in the metal liner is used as a template to mark the position of the hole(s) to be
drilled at the top cover. Follow the below guidelines for the various options.
- Single Band – Refer to your APX radio (see Figure 5-9 or Figure 5-10) and see if your 
single band antenna is in the position of Band 1 or 2. Depending on which location your
antenna port is mark a hole in the appropriate antenna position only. Refer to Figure 5-8.
- Dual Band – Mark a hole in both the Band 1 and Band 2 Antenna position as seen on
Figure 5-8.
- GPS – Mark a hole in the GPS Antenna position as seen on Figure 5-8.
Antenna Band Label
Band 2 Antenna Port
Band 1 Antenna Port
GPS Antenna Port
Figure 5-9. Antenna Band Identification
GPS Antenna Port
Antenna Port
Figure 5-10. APX 2500/APX 4500 Antenna Band Identification
7. Remove the metal liner from the top cover.
8. For Band 1 and Band 2 positions, use the Motorola RPX-4378A Hole-Cutting Saw or
equivalent, and carefully drill a 3/4-inch hole at the marked location from the inside of the
cover until the saw bottoms out. For the GPS carefully drill a 9/16-inch hole at the marked
location from the inside of the cover until the saw bottoms out. The saw should clean a neat
circle to assure good contact between the antenna and the housing.
IMPORTANT:
For proper seating of the antennas, deburr and scrape any foreign
matter from both sides of the hole, being careful not to mar the
finish of the shell.
9. Clean the mounting surface around the hole to remove dirt and wax.
10. Refer to the Motorcycle GPS Instruction Manual for further installation instruction for the
GPS. GPS must be mounted before the APX metal liner is installed.
11. Reinstall the APX metal liner (see Figure 5-8) with the cable clamps provided in the weatherresistant housing. If installing GPS, the GPS coaxial cable must be fed through the hole in the
APX metal liner before the liner can be placed onto the housing. Then route the GPS Coaxial
Cable through the cable clamps before tightening the hex screws as installing the cable after
that is difficult due to the connector. See Figure 5-11 for GPS Cable Routing.
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Motorcycle Radio Installation Installing Antenna Base and Cables
5-17
Cable
Clamp
Coaxial
Cable
Connector
Figure 5-11. Routing the Coaxial Cable for GPS
12. Attach the 7/800, VHF or UHF antenna base per Antenna Installation Manual.
IMPORTANT:
Antenna Placement and Cable Routing in the Antenna Installation
Manual is not applicable for the APX series.
13. Route the coaxial cable for the 7/800, VHF or UHF antenna(s) through the cable clamps per
Figure 5-12 for Band 1 and Figure 5-13 for Band 2.
Be sure to observe the correct routing of the antenna cable. Failure to do so can damage the
cable.
Caution
Cable
Clamp
Coaxial
Cable
Attach to Antenna
Connector on
Radio Band 1
Figure 5-12. Routing the Coaxial Cable for Band 1
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5-18
Motorcycle Radio Installation Installing the Antenna
Cable
Clamp
Coaxial
Cable
Attach to Antenna
Connector on
Radio Band 2
Figure 5-13. Routing the Coaxial Cable for Band 2
14. After routing cable, allow enough of the cable to reach the radio’s antenna connector and cut
off any excess length of the cable.
15. Install the connector per Antenna Installation Manual.
5.8
Installing the Antenna
IMPORTANT:
Antenna Placement and Cable Routing as described inside the
Antenna Installation Manual is not applicable for the APX radio
series. Refer to information listed below.
• Connect the appropriate antenna connectors to the antenna receptacles on the radio. Tighten
the coupling until fully engaged.
5.9
Cable Routing
Five cables must be installed to interconnect the components of the radio system as shown in
Figure 5-14. The antenna cable is routed away from the other cables inside the enclosure’s hinged
cover (see Section 5.7 on page 5-15). The four remaining cables, routed along the motorcycle frame,
are described in the following paragraphs.
NOTE: Antenna Hole Placement and Cable Routing information in the Antenna Installation Manual
is not applicable to the APX series.
Removal of the fuel tank and seat from the motorcycle will facilitate routing the cables along
the frame. Motorcycles with consoles attached to fuel tanks require routing cables between
console and fuel tank. In this case the tank is not removed.
6878215A01
Motorcycle Radio Installation Cable Routing
5-19
SPEAKER/
CONTROL HEAD
CONTROL HEAD
CABLE
SPEAKER
CABLE
MICROPHONE
ACCESSORY
CONTROL HEAD
CABLE
CABLE
POWER
ANTENNA
CABLE
CABLE
BATTERY
FUSE
BLOCK
IGNITION
CABLE
SPEAKER
CABLE
CHASSIS GROUND
FUSED POWER
CABLE
Figure 5-14. Cable Routing
1. Speaker Cable – runs from the speaker to the accessory-cable connector inside the
weather-resistant enclosure.
2. Control Cable – runs from the rear of the control head to the front of the transceiver inside
the enclosure.
3. Ignition Sense (Red) Wire Portion of Accessory Cable – runs from the ignition sense fuse
terminal of the fuse box to the rear area inside the enclosure. The lug for attaching the ignition
sense wire is contained on the accessory cable.
4. Power Cable – The red, unterminated end runs from the positive terminal of the battery to
the power connector that plugs in the rear of the transceiver. Lugs for attaching the red and
black leads are contained in the motorcycle power-cable kit. The black, unterminated end
runs from a suitable motorcycle chassis ground to the power connector. DO NOT connect the
black lead directly to the negative battery post.
You may route the cables in any order. As you route each cable, temporarily fasten it at both ends.
When all cables have been run, permanently fasten the cables with appropriate cable tie wraps.
Observe the following during routing and hook-up:
1. Route the cables so that none interfere with motorcycle operation.
2. Fasten the cables with supplied nylon tie wraps. The wraps should be firmly installed at
frequent intervals along the cable length in such a manner that motorcycle vibration will not
cause metal fatigue and subsequent breakage of the cable wires.
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5-20
Motorcycle Radio Installation Cable Routing
3. Take care to position cables away from parts of the motorcycle that get hot.
Bundle excess cable length inside the weather-resistant enclosure as discussed later in Section
5.11: “Transceiver and Cabling Installation” on page 5-22.
The fifth cable is the microphone with coiled cord. Plug the 9-pin D-connector end of the coiled cord
into its mating connector, which was attached near the control head discussed in an earlier
paragraph. Tighten the coiled-cord-retention screws. Insert the S-hook strain relief (terminated to the
coiled cord) into the hole in the mounting bracket. Slide the microphone into the microphone hang-up
bracket.
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Motorcycle Radio Installation Installing the Weather-Resistant Enclosure
5-21
5.10 Installing the Weather-Resistant Enclosure
TO MOTORCYCLE
CHASSIS GROUND
Item No.
Description
Item No.
Description
Universal Mounting Plate
Flat Rubber Washer
Machine Screw
Shouldered Rubber Washer
Lockwasher
7-1/2-inch Ground Strap
Flat Washer
Ground Strap
Figure 5-15. Weather-Resistant Enclosure Installation
1. Remove the radio-mounting plate by removing four screws, lock washers, and flat washers.
2. The weather-resistant enclosure is mounted to the universal mounting plate using shock
mounts. Assemble the shock-mount components exactly as shown in Figure 5-15. Be sure to
install ground straps between the shock-mount and the transceiver trunnion mount, and
install one 7-1/2-inch ground strap between the right rear mount and the enclosure lid’s
antenna ground plane 0 (shown in Figure 5-15 and in Figure 5-17).
3. The order of assembly is important to ensure proper shock mount operation. All components
are supplied with the mounting kit. The five 7- 1/2-inch straps are used on the rear and front
shock mounts – four from shock mount to trunnion, and one from the shock mount to the lid’s
antenna ground plane.
NOTE: Grounding through the power-supply cable is NOT sufficient. Whether the radio transceiver
is mounted to a carrier or the chassis itself, the transceiver MUST be properly grounded to
the motorcycle chassis. The ground strap supplied with the installation kit may have to be
used to ensure a good RF ground path from the radio transceiver to the motorcycle chassis.
4. Install the 3-foot ground strap on one of the front shock mounts. Route it through the cablerouting hole and connect the other end to the motorcycle frame (see Figure 5-15).
WARNING
6878215A01
DO NOT connect the ground strap directly to the negative battery post.
5-22
Motorcycle Radio Installation Transceiver and Cabling Installation
5. The diagram of the shock mount is shown loosely assembled. After the hex screws are
tightened, the rubber washers are compressed to fasten the weather- resistant enclosure
securely to the universal mounting plate.
6. Figure 5-17 is an exploded view of the enclosure; it shows details that will help to understand
how the enclosure is mounted. After the enclosure is completely mounted, check for proper
ground connection–continuity between the antenna ground plane and the motorcycle frame.
5.11 Transceiver and Cabling Installation
After the weather-resistant enclosure has been installed, the radio chassis (transceiver) is installed in
the enclosure and then appropriate cables are connected. However, before the transceiver can be
installed, the cabling must be properly positioned in the enclosure.
5.11.1 Installing Cabling in the Enclosure
Position the cabling in the weather-resistant enclosure as follows:
1. Run the speaker, power, control-head, and ignition sense cables into the enclosure.
2. Lay the excess cable length between the radio mounting bosses in an S configuration as
shown in Figure 5-16. Do not coil any excess cable. Use the supplied tie wraps to bundle
cable as shown.
NOTE: If the extra cable length is not sufficient to match the illustrated cable routing, then match the
illustration as closely as possible.
3. Connect the speaker cable to the accessory cable connector.
NOTE: The accessory-cable emergency connector is shipped with a shorting plug installed. The
headset connector is also shipped with a shorting plug installed. The plugs must remain in if
an emergency switch and/or headset is not used. If an emergency switch and/or headset is
used, remove the shorting plug(s) and discard.
4. Install the mounting plate in position on top of the cables installed above. Take care not to
damage or pinch the cables when securing the mounting plate in position.
NOTE: At this point, the control-head cable plug should be located at the forward end of the
enclosure, and the power-cable, speaker-cable, and accessory-cable plugs should be located
at the rear of the enclosure.
6878215A01
Motorcycle Radio Installation Transceiver and Cabling Installation
ACCESSORY CABLE
EMERGENCY AND
EXTERNAL ALARM
CONNETOR
5-23
ACCESSORY
CABLE HEADSET
CONNECTOR
HEADSET
SPORTING PLUG
TRANSCEIVER
POWER CABLE
EMERGENCY
CABLE SHORTING
PLUG
ACCESSORY
CABLE
IGNITION SENSE
(ACC)
CONTROL CABLE
(CAN)
CONTROL HEAD
GROUND (BLACK)
CONTROL HEAD
POWER (RED)
CONTROL HEAD
POWER FUSE
Figure 5-16. Installing Cables
5.11.2 Installing the Transceiver
Install the transceiver in the weather-resistant enclosure as follows (see Figure 5-17).
NOTE: For new or existing installations, use only the APX mobile trunnion (kit number: HLN7002_).
1. Install the mounting trunnion and loose ends of the four ground straps to the radio-mounting
plate, using four screws, flat washers, and external-tooth lock washers (see Figure 5-17). The
ground straps must be sandwiched between the flat washers and lock washers. The lock
washer must be against the trunnion. The flat washer must be under the screw head.
2. Attach the transceiver to the mounting trunnion and secure with the two screws provided.
3. Connect the control cable to the front of the transceiver. Ensure the control-cable connector
screws are tightened.
4. Attach the accessory connector to the transceiver. Plug in the power connector.
5. Install the grommet around the cables and push the grommet into the cable-routing hole of
the weather-resistant enclosure.
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5-24
Motorcycle Radio Installation Transceiver and Cabling Installation
15
18
17
16
10
13
12
14
11
Figure 5-17. Installing the Transceiver
Table 5-1. Transceiver Installation Parts List
Item No.
Description
Lock washer
Flat washer (8 used)
Screw
Screw
Grommet
Screw
Lock catch
Radio mounting plate
Bottom housing
Item No.
10
11
12
13
14
15
16
17
18
Description
Ground shield plane
Top cover
Gasket
Hinge
Enclosure mounts
Transceiver
Screw
Trunnion
External tooth lock washer (8 used)
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Motorcycle Radio Installation Installing the Emergency Switch Option
5-25
5.12 Installing the Emergency Switch Option
Use the two-conductor, green/black cable which has as one end terminated with two contacts (part
number 3080221P02) and which is supplied with this W688 Motorcycle Emergency Push Button.
Disconnect the emergency switch shorting plug from the accessory cable. Replace the shorting wire
of the shorting plug with the terminated end of the green/black emergency cable. Reconnect the plug
to the accessory cable.
5.13 Installing the External Alarm Relay Option
The motorcycle radio is offered with only one optional relay connection. If both horn and lights are
required, wire a second relay coil parallel to the first relay. Use the two-conductor green/black cable
which has one end terminated with two contacts (part number 3080221P02) and which is supplied
with this W116 Motorcycle Alarm Relay Option. Insert the contacts into positions 3 and 4 of the
emergency shorting plug of the accessory cable. Refer to Figure 5-23.
5.14 Installing the Headset Accessory
A six-position connector on the accessory cable has been made available for connecting a headset
accessory. Headset manufacturers should be consulted for compatibility with the motorcycle radio
prior to purchase and installation of the headset. To install, disconnect the headset shorting plug.
Remove the headset shorting wire from the headset shorting plug. Terminate the contacts provided
to the applicable wires of the headset cable. Insert the terminated wires into the headset shorting
plug per the contact positions illustrated in the typical headset schematic found in this manual.
Reconnect the terminated headset shorting plug to the accessory cable.
When upgrading from an APX mobile radio, the existing headset cable HLN6890 requires these two
pins to be swapped (see Figure 5-18). The other motorcycle headset cable with this pin change is
3080010R04.
20
13
26
Remove from Pin 1
(VIP OUT 1)
J2, BACK OF RADIO
SPK +
SPK -
GND
VIP OUT 1
AUX_MIC
Insert into Pin 22
(Monitor)
AUX_PTT
21
14
(Female-Pins)
Rework for Handlebar HUB operation when
upgrading existing cable HLN6890.
Figure 5-18. Motorcycle Wiring Harness Rework
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5-26
Motorcycle Radio Installation Installing the O5 Control Head Sunshield
5.15 Installing the O5 Control Head Sunshield
Install the sunshield (part number NNTN7279_) to the O5 control head as follows.
1. Assemble the sunshield to the remote mount trunnion as shown in Figure 5-19. The same
process can be used for the motorcycle trunnion.
Figure 5-19. Remote Mount Trunnion with Sunshield
2. Position the sunshield as shown in Figure 5-20 and remove the Velcro adhesive backing.
Velcro Adhesive Backing
Figure 5-20. Position the Sunshield
6878215A01
Motorcycle Radio Installation Installing the O5 Control Head Sunshield
5-27
3. Slide the control head onto the trunnion while aligning the edge of the control head with the
edge of the sunshield as shown in Figure 5-21. Make sure the Velcro properly adheres to the
control head.
Figure 5-21. Slide the Control Head onto Trunnion
4. Position control head as desired and install screws as shown in Figure 5-22.
Figure 5-22. Position Control Head as Desired
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5-28
Motorcycle Radio Installation
5.16 Horn/Lights Wiring
Figure 5-23. Horn/Lights Wiring Diagram
5.17 Emergency Switch Wiring
Figure 5-24. Emergency Switch Wiring Diagram
WARNING
Motorcycle products must have pins 1 and 2 connected together to allow the
radio to power down. Opening this connection by REMOVING the emergency
shorting plug, or pressing the emergency switch, will turn on the radio. Failure
to maintain a normally-closed path could drain the vehicle battery if left
unchecked.
EMERGENCY-equipped radios are capable of TRANSMITTING without warning.
6878215A01
Chapter 6 Finishing the Installation
6.1
Cable Connection
6.1.1
O2 Control Head
Perform the following if it has not been previously done:
1. Remove the control head from its mounthing trunnion. Plug the radio’s CAN cable into the
proper location on the back of the control head (see Figure 2-28 and Figure 2-30 in
Chapter 2). The connectors “click” when snapped into place. The control head model can
have the microphone plugged into the lower left corner of the control head front panel.
2. Connect the plug from the speaker lead to the mating connector coming out of the power
cable.
3. Plug the VIP connector into the correct location on the back of the control head.
4. Connect the CAN cable to the proper location on the transceiver.
NOTE: Connector-protective covers are provided with the radio. They should be used for added
environmental robustness.
Be sure the control head and microphone PTT switches are OFF. Install the 15-amp fuse in
the radio power cable fuseholder and the 3- or 4-amp fuse(s) in the ignition sense cable
fuseholder(s).
Turn the radio ON at the control head and verify proper operation of all controls and indicators.
Radio operation in some installations require turning on the ignition sense. Perform a
complete operational check of the radio.
Dress the control and power cables out of the way to prevent damage (pull any excess cable
into the trunk area) securing with clamps and tie wraps where necessary.
6.1.2
O3 Control Head
Perform the following if it has not been previously done:
1. Unplug the CAN coiled cable connector on the Transceiver Interface. Plug in the connector
again. A “click” sound should be heard. Ensure location of CAN connector is correct 
(i.e. J800L or J800R) on the transceiver interface.
Connect the plug from the speaker lead to the mating connector of either J2 or J626 
(refer cabling diagram for detail).
6.1.3
O5 Control Head
Perform the following if it has not been previously done:
1. Remove the control head from its mounting trunnion. Plug the radio's CAN cable into the
proper location on the back of the control head (see Figure 2-28 and Figure 2-30 in
Chapter 2). The connectors “click” when snapped into place. The control head model can
have the microphone plugged into the lower left corner of the control head front panel.
2. Connect the plug from the speaker lead to the mating connector coming out of the power
cable.
6-2
Finishing the Installation Cable Connection
3. Plug the VIP connector into the correct location on the back of the control head.
4. Connect the CAN cable to the proper location on the transceiver.
6.1.4
O7 Control Head
Perform the following if it has not been previously done:
1. Remove the control head from its mounting trunnion. Plug the radio's CAN cable into the
proper location on the back of the control head (see Figure 2-28 and Figure 2-30 in
Chapter 2). The connectors “click” when snapped into place. The control head model can
have the microphone plugged into the lower left corner of the control head front panel.
2. Connect the plug from the speaker lead to the mating connector coming out of the power
cable.
3. Plug the VIP connector into the correct location on the back of the control head.
4. Connect the CAN cable to the proper location on the transceiver.
6.1.5
O9 Control Head
Perform the following if it has not been previously done:
1. Remove the control head from its mounting trunnion. Plug the radio's CAN cable into the
proper location on the back of the control head (see Figure 2-29 and Figure 2-31 in
Chapter 2). The connectors “click” when snapped into place. The control head model can
have the microphone plugged into the CGAI connection on the control head back panel.
2. Connect the plug from the speaker lead to the mating connector coming out of the power
cable.
3. Plug the VIP connector into the correct location on the back of the control head.
4. Connect the CAN cable to the proper location on the transceiver.
October 2012
6878215A01
Finishing the Installation Dust Cover Installation
6.2
6-3
Dust Cover Installation
To help protect and ensure debris does not effect or damage your unused connectors, please use
the provided dust covers. Refer to Figure 6-1 to determine which cover is for which connector.
A: 1515047C01
B: 1515048C01
C: 1515049C01
D: 7575262A01
E: 1575640C01
Control Head
G: 1575693A01
Control Head (Rear)
F: 1515327H02
Mid Power Tanapa (Remote Front)
Mid Power Tanapa (Rear)
APX 2500/APX 4500 Mid Power Tanapa (Rear)
High Power Tanapa (Remote Front)
High Power Tanapa (Rear)
Figure 6-1. Dust Cover Installation Locations
6878215A01
October 2012
6-4
Finishing the Installation Miscellaneous Information
NOTE: Parts B and F require inserting then turning approximately 1/3 turn using a coin as a tool until
it contacts the stop.
Parts C and/or D shall be installed onto DB25 accessory cable assembly when the
corresponding cable assembly connections are not in use.
Part G is not used on single band transceivers.
6.3
Miscellaneous Information
On the mid power and 100W radios, there are rubber port plug which seals an opening which is used
for a future antenna connection. On the mid power, the port plug is located at the bottom of the radio
behind the control head or TIB. On the high power, the port plug is located at the TIB. These plugs
are critical to the sealing of the radio and should not be removed unless to replace it due to damage
or to install the future antenna connector. Removal of the port plug in any other situation would
create a leak path into the radio.
October 2012
6878215A01
Chapter 7 Best Practices: Installation & Troubleshooting
In this section are Motorola recommended vehicle installation practices that can address or prevent
many issues, including:
• Radio circuit damage due to over voltage condition
• Radio/Accessories "lock up"
• Radio/Accessories change state/lock-up when radio PTT is depressed
• Radio powers up in the FL 01/90 state (general communication error code)
• Radio intermittently resets
• Radio loses secure key
• Transmit audio distortion on motorcycle radio when engine is running
• Keypad buttons become inoperative for motorcycle radios when engine is running
• Alternator whine present when transmitting with engine running
• Radio/Accessories turn themselves on/off
7.1
Check Wiring of Ignition and Radio Ignition Sensing
• If it is required to turn the radio on and off via the ignition sense switch, in addition to the control
head’s on/off switch, connect the ignition sense lead to the accessory terminal from the ignition
switch (usually in the vehicle’s fuse panel under accessory or radio).
NOTE: Motorola recommends protecting or isolating the radio’s ignition sense input from voltage spikes
in excess of +/- 40VDC. Such spikes can be hundreds of volts in amplitude and are common in
larger vehicles (utility trucks, buses and etc.), especially when the source is common to a
solenoid coil. A triggerable oscilloscope is required to determine the existence of such spikes as
most voltmeters cannot measure in short duration (< 1 msec). If the condition of the intended
ignition sense source is unknown, Motorola recommends isolating the source from the radio with
a relay or the use of a suppression diode wired between the source and ground. Any high current
suppression diode (i.e. MR2535) with a breakdown voltage of between 18 and 40 volts will
suffice. A suitable diode kit is available from Motorola parts, kit number HLN6325_.
• If it is required to have the radio power up only via the control head’s on/off switch, then connect
the ignition sense lead directly to the positive terminal of the battery. This will mean the ignition
sense will always be ignored and a re-wiring will be necessary in the future if the operator
chooses any ignition sense CPS setting.
7-2
7.2
Best Practices: Installation & Troubleshooting
Check Physical Installation of Radio Ground and Radio Accessory Wiring
Check Physical Installation of Radio Ground and Radio Accessory
Wiring
• Take care to scrape away paint on the chassis at the place where the ground connection is
to be made, and try to keep the ground lead as short as possible.
• Verify that the A+ lead (red) is connected directly to the positive terminal of the battery and
the ground lead (black) is connected to the vehicle’s chassis using as short of a length of
wire as is practical.
• For vehicles that have other types of electronic equipment installed (lights, flashers,
computers siren/PA and etc.), use a separate ground for the mobile radio equipment.
• Make sure that the mobile radio antenna is the minimum required distance (three feet) from
the mobile radio equipment to prevent radio frequency interference (RFI) from interfering
with the radio and/or accessories.
• Do not coil up any excess length of the A+ (red) lead. Doing this may cause a large transient
voltage to be produced when there is a high current drain (e.g. during transmit). This could
cause the radio to reset when the push-to-talk (PTT) is depressed.
• For motorcycle mounted radios, make sure that the antenna ground connection is solid. An
intermittent ground connection can cause the transmission to be distorted when the
motorcycle’s engine is running.
• Do not coil up any excessive length of antenna cable, if possible. It may affect the radio’s
receive performance.
• If an extra length of cable is used to extend the microphone, make sure the added
capacitance does not interfere with the operation of the radio.
7.3
Improve the Electrical Quality of the Power and Ignition Lines
• Use a relay to isolate the vehicle’s ignition switch point (ACC) from the radio’s ignition sense
point. Control this relay from the vehicle’s ignition switch point (ACC). Supply a cleaner
voltage from the positive terminal of the battery into the relay, which will now be attached to
the radio’s ignition sense point. Now the ACC line toggles the relay, instead of directly
toggling the radios ignition sense line.
• Install a Power Line Filter between the A+ lead and the positive terminal of the battery. This is
intended to filter the battery power applied to the transmitter power amplifiers. Pay extra
caution to this because the series filter will introduce a negative spike when the radio
transmits that may cause problems with radio operation. Lock-up issues have been seen
with the dual control head MCS 2000 configuration.
• For vehicles that use electromechanical relays to control external devices (lights, motors,
switch boxes and etc.), these relay circuits should be isolated as best as possible from the
mobile radio equipment. Also, diode suppression should be used across the relay contacts to
minimize the noise produced by the collapsing magnetic field.
• If the ignition sense switch is to be used, make sure that there is not a large voltage drop
between the A+ point (usually the positive terminal of the battery) and the ignition sense
point. In general, the voltage difference between these two points, should not be greater than
1.5 volts when all accessories/air-conditioner, etc. are turned on. Refer to the Basic Service
Manual for specifications for minimum and maximum voltage levels. Typical battery voltage
levels are 13.6V +/- 20%.
6878215A01
Best Practices: Installation & Troubleshooting Minimize the Effect of Poorly Grounded Antennas
7.4
7-3
Minimize the Effect of Poorly Grounded Antennas
• For vehicles with high power (100W) radios that use glass mount antennas, care must be
taken to keep the radio and antenna cable as far as possible from the radiating element of
the antenna. If a sufficient distance is not maintained, the glass mount antenna’s lack of a
proper ground plane may cause the radio’s transmit signal to interfere with itself and cause a
reset. To minimize this effect, it may be necessary to install ferrite beads on the antenna
cable to protect the radio from this interference.
7.5
Jump-Start the Vehicle
Do not jump-start vehicle with radio power or ignition sense cables connected.
Damage to the radio and/or accessories may result.
Caution
Jump-starting a motorcycle can crank 300+ volts through the vehicle’s charging system and these
transients can damage electrical equipment.
The state of your radio prior to needing a jump-start may be unknown, and the radio may attempt to
return to its last state (radio ON), when doing a jump-start. Therefore, Motorola recommends the
following steps be taken before jump-starting any vehicle containing a radio.
1. Locate the ignition sense line (thin yellow wire or thin red wire, depending on dash mount or
remote mount installation) and the main power leads (thick red wire) near the battery positive
terminal.
NOTE: These lines are fused. In the event these lines are not fused (add the appropriate fuse in line)
use whatever tools necessary to physically disconnect the ignition sense and power lines
from the battery terminal.
Make sure that the disconnected lines are not in the way of moving motorcycle parts or
interfering with the motorcycle operation in any way.
2. Open up the fuse holders and remove the fuses out of the kits.
3. Re-tighten the fuse holders but without the fuses to insure that ignition sense and power lines
do not interfere with moving motorcycle parts.
4. Proceed with the jump-start routine as described by your vehicle owner’s manual.
5. Once the jump-start process is complete, re-install the fuses into their holders.
7.6
Eliminate Noise/Howling from PA Speaker
1. Refer to Section 2.1.1 for recommended methods of installation available for the mobile 
two-way radio, with accessories placed to the vehicle as desired.
2. Refer to Figure 2-16 and Figure for the wiring diagrams for the recommended configurations.
3. Refer to the Siren/PA User Manual (part number 6881093C18) for further details on lowering
the wattage.
6878215A01
7-4
Best Practices: Installation & Troubleshooting
Notes
6878215A01
Appendix A
A.1
Replacement Parts Ordering
Basic Ordering Information
When ordering replacement parts or equipment information, the complete identification number
should be included. This applies to all components, kits, and chassis. If the component part number
is not known, the order should include the number of the chassis or kit of which it is a part, and
sufficient description of the desired component to identify it.
The ASTRO APX Mobile Radio Basic Service Manual (Motorola publication part number
6875964M01) includes complete parts lists and part numbers.
A.2
Motorola Online
Motorola Online users can access our online catalog at
https://www.motorola.com/businessonline
To register for online access:
• Domestic customers: please call 800-814-0601 (U.S. and Canada).
• International customers: please go to https://www.motorola.com/businessonline and click on
“Sign Up Now.”
A.3
Mail Orders
Send written orders to the following addresses:
Replacement Parts/
Test Equipment/Manuals/
Crystal Service Items:
Federal Government Orders:
International Orders:
Motorola Inc.
Radio Products and Services
Division*
Attention: Order Processing
2200 Galvin Drive
Elgin, IL 60123
U.S.A.
Motorola Inc.
U.S. Federal Government
Markets Division
Attention: Order Processing
7230 Parkway Drive
Landover, MD 21076
U.S.A.
Motorola Inc.
Radio Products and Services
Division*
Attention: Order Processing
2200 Galvin Drive
Elgin, IL 60123
U.S.A.
A-2
A.4
Replacement Parts Ordering Telephone Orders
Telephone Orders
Radio Products and Services Division*
(United States and Canada)
7:00 AM to 7:00 PM (Central Standard Time)
Monday through Friday (Chicago, U.S.A.)
1-800-422-4210
1-847-538-8023 (International Orders)
U.S. Federal Government Markets Division (USFGMD)
1-800-826-1913 Federal Government Parts - Credit Cards Only
8:30 AM to 5:00 PM (Eastern Standard Time)
A.5
Fax Orders
Radio Products and Services Division*
(United States and Canada)
1-800-622-6210
1-847-576-3023 (International)
USFGMD
(Federal Government Orders)
1-800-526-8641 (For Parts and Equipment Purchase Orders)
A.6
Parts Identification
Radio Products and Services Division*
(United States and Canada)
1-800-422-4210, menu 3
A.7
Product Customer Service
Customer Response Center
(Non-technical Issues)
1-800-247-2346
FAX:1-800-247-2347
*The Radio Products and Services Division (RPSD) was formerly known as the Customer Care and Services
Division (CCSD) and/or the Accessories and Aftermarket Division (AAD).
A.8
Asia Pacific Service Centers
Motorola Solutions Singapore
Pte. Ltd.
c/o Azure Engineering
49 Jalan Pemimpin
#03-11 APS Industrial Building
Singapore 577203
TEL: (+65) 63526383
Motorola Solutions Philippines,
Inc.
Unit 2102, One Global Place
Building
5th Ave., Bonifacio Global City
Taguig, Philippines 1634
TEL: (+632) 8587500
FAX: (+632) 8410681
Motorola Solutions (Thailand) Ltd.
142 Two Pacific Place Suite 2201
3220 Sukhumvit Road
Klongtoey
Bangkok 10110
TEL: (+662) 6532220
FAX: (+668) 2545922
PT. Motorola Solutions Indonesia
30th Floor, Gedung BRI II, Suite
3001
Jl. Jend. Sudirman Kav. 44-46
Jakarta 10210
Indonesia
TEL: (62-21) 30435239
Motorola Solutions Sdn. Bhd.
Level 14, Persoft Tower
No. 68, Pesiaran Tropicana
47410 Petaling Jaya
Selangor Darul Ehsan
Malaysia
TEL: (+603) 78090000
6878215A01
Index
Index
Numerics
100W radios
antenna connection ............................................. 2-40
configurations ........................................................ 1-9
installation ........................................................... 2-24
lock ...................................................................... 2-32
trunnions ............................................................. 2-20
100W radios .......................................................... 1-9
dash mount ........................................................... 1-5
motorcycle ........................................................... 1-14
multi control ......................................................... 1-13
remote mount ........................................................ 1-7
control head .............................................. 2-29, 4-6, 4-8
cabling ................................................................. 2-24
diagrams ........................................... 2-25, 2-26, 2-27
multi .................................................................... 1-13
remote mount ........................................................ 1-7
control stations ....................................................... 1-14
accessories
connector assembly ..................................... 4-1, 4-10
assembly ......................................................... 4-11
disassembly ..................................................... 4-10
exploded view .................................................. 4-11
connector pins ....................................................... 4-8
headset ........................................................ 5-2, 5-25
installing
dash mount ........................................................ 4-1
horn relay ........................................................... 4-4
light relay ........................................................... 4-4
remote mount .................................................... 4-9
antenna ..................................................................... 5-5
cable, see Cables, antenna
connection ........................................................... 2-40
diagrams .................................................... 2-40, 2-41
installing ..................................................... 2-38, 5-18
motorcycle ............................................................. 5-2
mounting ............................................................. 2-38
site ....................................................................... 2-38
dash mount
accessories installations ....................................... 4-1
configuration ......................................................... 1-5
installation examples ............................................. 2-2
radio dimensions ..............................1-1, 1-2, 1-3, 1-4
trunnion ............................................................... 2-21
emergency footswitch ............................................... 4-1
emergency pushbutton ............................................. 4-1
emergency switch
installing .............................................................. 5-25
wiring ................................................................... 5-28
external alarm
installing .............................................................. 5-25
see also Horn relay or Light relay
footswitch, emergency .............................................. 4-1
base stations ........................................................... 1-14
black lead ..............................................2-33, 5-19, 5-25
green lead ............................................................... 5-25
cables ................................................5-3, 5-4, 5-5, 5-22
accessory .....................................4-1, 4-2, 5-19, 5-25
adapter ................................................................ 4-12
antenna ...................................................... 2-19, 2-40
battery ................................................................. 4-10
connection ...................................................... 6-1, 7-1
diagrams ..................................2-25, 2-40, 5-19, 5-23
emergency .......................................................... 5-25
excess ................................................................. 5-22
ignition ................................................................. 4-10
microphone .................................................. 5-2, 5-12
motorcycle control head ...............5-2, 5-9, 5-11, 5-19
motorcycle control head, installing ...................... 5-18
motorcycle transceiver ........................................ 5-22
power ......................................................... 2-33, 5-19
remote mount ...................................................... 2-24
routing ................................................................. 5-19
speaker ...............................................5-2, 5-14, 5-19
configurations
horn relay ..................................4-2, 4-3, 4-4, 5-25, 5-28
ignition
cable ................................................................... 4-10
wire ..................................................................... 5-19
wire, for motorcycle ............................................... 5-2
installation
examples ............................................................... 2-2
important hints ....................................................... 5-4
order of .................................................................. 5-5
J2 ....................................................................... 4-7, 4-8
Index-2
leads
black ..................................................2-33, 5-19, 5-25
green ................................................................... 5-25
light relay ................................. 4-2, 4-3, 4-4, 5-25, 5-28
locking kit, installing ................................................ 2-32
pin
ground ................................................................... 4-3
SW B+ ..................................................... 4-4, 4-7, 4-8
VIP in .................................................................... 4-8
VIP out ........................................................... 4-4, 4-7
pushbutton, emergency ............................................ 4-1
microphone ........................................................ 5-2, 5-4
hang-up clip, installing ......................................... 5-14
hang-up clip, standard ..................2-46, 5-5, 5-9, 5-11
mounting ............................................................... 5-4
motorcycle
antenna ................................................................. 5-2
configuration ........................................................ 1-14
control head cable ................................................. 5-2
display unit ............................................................ 5-1
external speaker .................................................... 5-2
headset ................................................................. 5-2
ignition wire ........................................................... 5-2
installation ............................................................. 5-3
antenna ............................................................ 5-18
cables .............................................................. 5-18
cabling ............................................................. 5-22
control head ....................................................... 5-7
emergency switch ................................... 5-25, 5-28
external alarm .................................................. 5-25
fuel tank console ..............................5-9, 5-10, 5-12
handlebar .................................................. 5-8, 5-11
headset ............................................................ 5-25
horn/lights wiring .............................................. 5-28
microphone hang-up clip ................................. 5-14
speaker ..................................................... 5-7, 5-14
transceiver .............................................. 5-22, 5-24
universal mounting plate .................................... 5-6
weather-resistant enclosure ............................. 5-21
microphone ........................................................... 5-2
transceiver ............................................................. 5-1
mounting configurations .......................................... 2-19
dash ............................................................. 1-5, 2-21
motorcycle ........................................................... 1-14
multi control ......................................................... 1-13
remote .......................................................... 1-7, 2-23
mounting plate, universal ............................5-1, 5-3, 5-5
installing ................................................................ 5-6
mounting, antenna
restrictions ........................................................... 2-38
roof top ................................................................ 2-38
trunk lid ................................................................ 2-38
multi control
configuration ........................................................ 1-13
relays
horn .......................................4-2, 4-3, 4-4, 5-25, 5-28
light .......................................4-2, 4-3, 4-4, 5-25, 5-28
remote mount
accessory installations .......................................... 4-9
cabling ................................................................. 2-24
configuration ......................................................... 1-7
control cable installation ...................................... 2-29
installation ............................................................. 2-8
installation examples ............................................. 2-2
trunnion ............................................................... 2-23
replacement parts, ordering ...................................... A-1
speaker ..................................................................... 5-5
cable, see Cables, speaker
external ................................................................. 5-2
fuel tank console installation ............... 5-9, 5-10, 5-12
handlebar installation .......................... 5-8, 5-11, 5-12
installing ................................................ 5-7, 5-9, 5-14
mounting ............................................................. 2-43
tools, required ......................................................... 1-14
trunnion ................................................................... 2-25
100W radios ........................................................ 2-20
bracket for speaker ............................................. 2-43
dash mount ......................................................... 2-21
diagrams ............................................................. 2-25
locking kit ............................................................ 2-32
motorcycle installation ......................................... 5-23
mounting bracket ................................................ 2-21
orientation ........................................................... 2-20
remote mount ............................................... 1-7, 2-23
transmission hump mounting .............................. 2-22
universal mounting plate ............................. 5-1, 5-3, 5-5
installing ................................................................ 5-6
ordering replacement parts .......................................A-1
VIP
connector ....................................................... 4-2, 6-2
input connections .................................................. 4-8
output connections ................................................ 4-7
parts, ordering replacement ......................................A-1
6878215A01
Index-3
wiring diagrams ......................................................... 2-3
6878215A01
Index-4
Notes
6878215A01
Glossary
Glossary
This glossary contains an alphabetical listing of terms and their definitions that are applicable to the
ASTRO radio.
Term
Definition
analog
Refers to a continuously variable signal or a circuit or device designed
to handle such signals. See also digital.
band
Frequencies allowed for a specific purpose.
CPS
See Customer Programming Software.
Customer
Programming
Software
Software with a graphical user interface containing the feature set of an
ASTRO radio.
default
A pre-defined set of parameters.
D.E.K
Direct Entry Keyboard.
digital
Refers to data that is stored or transmitted as a sequence of discrete
symbols from a finite set; most commonly this means binary data
represented using electronic or electromagnetic signals. See also
analog.
EEPROM
See Electrically Erasable Programmable Read-Only Memory.
Electrically Erasable
Programmable
Read-Only Memory
A special type of PROM that can be erased by exposing it to an
electrical charge. An EEPROM retains its contents even when the
power is turned off.
FCC
Federal Communications Commission.
firmware
Code executed by an embedded processor such as the Host or DSP in
a subscriber radio. This type of code is typically resident in non-volatile
memory and as such is more difficult to change than code executed
from RAM.
frequency
Number of times a complete electromagnetic-wave cycle occurs in a
fixed unit of time (usually one second).
kHz
See kilohertz.
kilohertz
One thousand cycles per second. Used especially as a radio-frequency
unit.
MCU
See microcontroller unit.
MHz
See Megahertz.
Glossary-2
Term
Definition
Megahertz
One million cycles per second. Used especially as a radio-frequency
unit.
microcontroller unit
Also written as μC. A microprocessor that contains RAM and ROM
components, as well as communications and programming components
and peripherals.
PA
Power amplifier.
paging
One-way communication that alerts the receiver to retrieve a message.
PTT
See Push-to-Talk.
Publication Manual
Revision
A publication that provides supplemental information for its parent
publication before it is revised and reissued.
Push-to-Talk
The switch or button that causes the radio to transmit when pressed.
When the PTT switch or button is released, the unit returns to standby
or receive operation.
radio frequency
The portion of the electromagnetic spectrum between audio sound and
infrared light (approximately 10 kHz to 10 GHz).
RAM
See random access memory.
random access
memory
A type of computer memory that can be accessed randomly; that is, any
byte of memory can be accessed without touching the preceding bytes.
receiver
Electronic device that amplifies RF signals. A receiver separates the
audio signal from the RF carrier, amplifies it, and converts it back to the
original sound waves.
registers
Short-term data-storage circuits within the microcontroller unit or
programmable logic IC.
RESET
Reset line: an input to the microcontroller that restarts execution.
RF
See radio frequency.
RX
Receive.
signal
An electrically transmitted electromagnetic wave.
software
Computer programs, procedures, rules, documentation, and data
pertaining to the operation of a system.
time-out timer
A timer that limits the length of a transmission.
TOT
See time-out timer.
transceiver
Transmitter-receiver. A device that both transmits and receives analog
or digital signals. Also abbreviated as XCVR.
transmitter
Electronic equipment that generates and amplifies an RF carrier signal,
modulates the signal, and then radiates it into space.
6878215A01
Glossary-3
Term
Definition
TX
Transmit.
UHF
Ultra-High Frequency.
Universal Serial Bus
An external bus standard that supports data transfer rates of 12 Mbps.
USB
See Universal Serial Bus.
VHF
Very-High Frequency.
6878215A01
Glossary-4
Notes
6878215A01
Motorola Solutions, Inc.
1303 East Algonquin Road
Schaumburg, Illinois 60196 U.S.A.
MOTOROLA, MOTO, MOTOROLA SOLUTIONS and
the Stylized M logo are trademarks or registered trademarks
of Motorola Trademark Holdings, LLC and are used under license.
All other trademarks are the property of their respective owners.
© 2009 – 2012 Motorola Solutions, Inc. All rights reserved.
October 2012.
*6878215a01*
6878215A01-F

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