Midland Radio SD174 UHF TRANSCEIVER TRANSMITTER PORTION User Manual sd 170 manual

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SD-174
Data Radio
User Instruction Manual
FCC RF Exposure Compliance Requirements
The Federal Communications Commission (FCC), with its action in General Docket 93-62, November 7, 1997, has adopted
a safety standard for human exposure to Radio Frequency (RF) electromagnetic energy emitted by FCC regulated
equipment. Maxon subscribes to the same safety standard for the use of its products. Proper operation of this radio will
result in user exposure far below the Occupational Safety and Health Act (OSHA) and Federal Communications
Commission limits.
Power listed is conducted. This device must not exceed a maximum transmitting duty factor of 50%. The antenna(s) used
for this transmitter must be installed to provide a separation distance of at least 49cm (19.29 inches) from all persons, must
not be co-located or operating in conjunction with any other antenna or transmitter, and must not exceed a gain of 7 dBc.
Failure to observe these restrictions will result in exceeding the FCC RF exposure limits.
About your SD-170 Series Data Radio
The SD-170 Series of RF Link Modules utilize the latest technology in their designs and manufacturing. SD-170 models are
Phase Lock Loop Synthesizer (PLL) / microprocessor controlled and offer two (2) watts of power with 16-channel capability.
Multiple functions including 1200 to 9600 baud rates, AC and/or DC audio coupling, GMSK, FFSK and FSK modulation are
standard in these fully programmable RF Link Module units. Programmable sub-audio squelch system (CTCSS & DCS)
and two-tone squelch system are added to the signal level detect squelch system (RSSI). GPS Data handling is provided to
interface and control an internal GPS receiver.
To assure satisfaction from the radio, we urge you to thoroughly read the operation and function information in this manual
before operating your SD-174.
Applications of some of the functions described in this manual are determined by the system you use. Your dealer will
program your radio so that you have the greatest number of functions possible relative to your needs.
Should you have questions regarding the operation of the radio, please consult your Dealer.
Specifications
GENERAL
Equipment Type ……………………………………………………… Data radio
Performance Specifications…………………………………………TIA / EIA-603 & AS-4295
Band …………………………………………………………………… UHF
Channel Spacings …………………………………………………… 25 kHz, 12.5 kHz programmable
RF Output Power …………………………………………………… 5 watt / 1 watt programmable
Modulation Type …………………………………………………… F2D, F3E
Intermediate Frequency …………………………………………… 45.1 MHz & 455 kHz
Number of Channels ………………………………………………… 16
Frequency Source …………………………………………………… Synthesizer
Operation Rating …………………………………………………… Intermittent
90 : 5 : 5 (Standby: RX: TX)
Power Supply ………………………………………………………… Ext. Power Supply(12 VDC Nominal)
9V - 18.0V DC EXTREME
Temperature Range
Storage ………………………………………………………………… from - 40°C to + 80°C
Operating ……………………………………………………………… from - 30°C to + 60°C
Current Consumption
Standby (Muted) ……………………………………………………… < 65 mA
Transmit 2 Watt RF power ………………………………………… < 1.0 A
Frequency Bands:
RX
UHF : U2 450.000 - 490.000 MHz
TX
450.000 - 490.000 MHz
Lock Time ……………………………………………………………… < 10 mS
TX to RX attack time ………………………………………………… < 20 mS (No Power Saving)
RX to TX attack time ………………………………………………… < 20 mS
Dimensions…………………………………………………………… (32 mm)H x (58 mm)W x (125 mm)D
Weight ………………………………………………………………… 253 grams
TRANSMITTER Specification
Carrier Power: ………………………………………………………… Nom. Max. Min.
High …………………………………………………………5W
< 6W > 4.5W
Low …………………………………………………………1W
< 1.5W > 0.8W
Sustained Transmission …………………………………………… Nominal conditions
Time : 5 10 30 Sec.
Power: >90% >85% >80%
Frequency Error ……………………………………………………… ±5.0 ppm Extreme condition for UHF
Frequency Deviation:
25 kHz Channel Spacing…………………………………………… Peak ±5.0, Min. ±3.8
12.5 kHz Channel Spacing………………………………………… Peak ±2.5, Min. ±1.9
Audio Frequency Response…………………………………………Within +1/-3dB of 6dB octave
@ 300 Hz to 2.55 kHz for 12.5 kHz C.S.
@ 300 Hz to 3.0 kHz for 25 kHz C.S.
Adjacent Channel Power
25 kHz ………………………………………………………………… < 70 dBc @ Nominal Condition
< 65 dBc @ Extreme Condition
12.5 kHz ……………………………………………………………… < 60 dBc @ Nominal Condition
< 55 dBc @ Extreme Condition
Conducted Spurious Emission …………………………………… < -60 dBc
Modulation Sensitivity ……………………………………………… 100mV RMS @ 60 % Peak Dev.
Hum & Noise:
25 kHz Channel Spacing …………………………………………… > 40 dB (with no PSOPH)
12.5 kHz Channel Spacing ………………………………………… > 40 dB (with PSOPH)
Modulation Symmetry ……………………………………………… < 10 % Peak Dev @ 1 kHz input
for nominal dev +20dB
Load Stability ………………………………………………………… No osc at ≥ 10:1 VSWR all phase angles and suitable
antenna
No destroy at ≥ 20:1 all phase angle
Peak Deviation Range Adjustment @ 1 kHz, Nom. Dev +20dB:
25 kHz Channel Spacing …………………………………………… Min. 3.5, Max. 6.0
12.5 kHz Channel Spacing ………………………………………… Min. 1.5, Max. 4.0
RECEIVER Specification
Sensitivity (12dB Sinad) …………………………………………… Standard B.W < -118 dBm, Narrow B.W <-117 dBm
@ Nom. Condition
Standard B.W < -115 dBm, Narrow B.W <-114 dBm
@ Extreme Condition
Amplitude Characteristic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±3 dB
Adjacent Channel Selectivity:
25 kHz Channel Spacing …………………………………………… > 70 dB @ Nom., > 60 dB @ Extreme Condition
12.5 kHz Channel Spacing ………………………………………… > 60 dB @ Nom., > 50 dB @ Extreme Condition
Spurious Response Rejection …………………………………… > 70 dB (100 kHz - 4 GHz)
Image Response ……………………………………………………… > 70 dB
IF Response…………………………………………………………… > 70 dB
Others. ………………………………………………………………… > 70 dB
Intermodulation Response Rejection:
±25 kHz/ 50 kHz ……………………………………………………… > 70 dB
±50 kHz/ 100 kHz …………………………………………………… > 70 dB
Conducted Spurious Emission @ Nominal Conditions:
9 kHz - 1 GHz ………………………………………………………… < -57 dBm
1 GHz - 4 GHz. ………………………………………………………… < -47 dBm
RX Spurious Emissions (Radiated) @ Nominal Conditions
9 kHz - 1 GHz ………………………………………………………… < -57 dBm
1 GHz - 12.75 GHz …………………………………………………… < -47 dBm
AF Distortion. ………………………………………………………… < 5% @ Nom., < 10 % @ Extreme condition
RX Hum & Noise:
25.0 kHz CP …………………………………………………………… < 40 dB No PSOPH
12.5 kHz CP …………………………………………………………… < 40 dB with PSOPH
Receiver Response Time …………………………………………… < 16 mS
Squelch Opening Range: …………………………………………… RF level for 6 to 14 dB Sinad
Squelch Closing Range (Hysteresis): …………………………… 0 - 6 dB Sinad @ Nominal Condition
Squelch Attack Time:
RF Level at Threshold ……………………………………………… < 40 mS
RF Level at Threshold + 20 dB …………………………………… < 30 mS
Squelch Decay Time ………………………………………………… 5 mS Min., 20 mS Max.
Antenna Socket Input Match ……………………………………… > 10 dB Return Loss
L.O. Frequency Temperature Stability …………………………… 1st < 5 ppm, 2nd < 15 ppm from -30° to + 60° C
L.O. Frequency Aging Rate ………………………………………… ±2 ppm/ year
Unpacking information
Remove and carefully inspect the contents of your package(s) for the following items:
Radio
Fused power cord
User manual
If any items are missing, please contact the dealer from which you purchased the radios, or contact us at phone number 1816-241-8500 or Fax. 1-816-241-5713.
SD-174 Features
• Synthesized Operation with 16 channel capability
• 1 / 5 Watt programmable output power
• Programmable 12.5 / 25KHz channel spacing
• Channel scan
• Busy channel lockout
• Tx Time-out timer
• Power Save
• Marked Idle
• Tx Delay
• Data transmission and reception through GMSK modem
• Data transmission and reception through FFSK modem
• Support transmission of global position data
Description of radio components
Antenna connector
DB-15 connector
Power connector
GPS Antenna connector (option)
LED (Busy / Tx indicator)
Exterior View
CON407
RV401
maxon
RV402
RV403
SW401
Digital Board
Antenna installation
Fasten the antenna to the radio by turning the antenna cable clockwise into the receptacle on left of radio when looking at
front of radio.
Powering the data radio
Your data radio accepts many sources of DC power to permit more versatile use. This radio operates from 9V to 18V DC
and standard voltage for test is 12V DC.
Connecting the data radio to DC power
Connect DC power plug of power cable to radio’s DC IN power connector and then fasten power plug to the radio by
turning the ring clockwise.
SD-170 Series Operation
Channel select / SCAN
Your radio’s channel can be selected by inner DIP-S/W or serial command inputted from external control system. To
change channel by inner DIP-S/W ( ), you should open the upper cover and then look for the DIP-S/W( ) on the digital
board of the bottom cover. Once located change the DIP-S/W to select wanted channel according to channel dip switch
chart.
To use a serial command for channel selection, it should be inputted by external equipment or device(ex. Personal
computer) through Pin 8 of DB-15 connector. See the message format for serial command for full details.
If your radio has been programmed the channel scan, you must enter the scan mode by serial command.
Transmit
The transmission will be made by various inputs such as PTT signal (Pin 3 of DB-15 connector), TX serial command and
Serial data input (Pin 10 of DB-15 connector : This input is only available when a modem option board is installed). TTL
level is used as PTT signal and is active low. If you installed an option modem board, you can use RS-232 level as a PTT
signal instead of TTL level. To maintain transmission, continuous PTT signal input is required. If you use Tx serial
command for transmission, normally, it’s released by Rx serial command. Before the transmission, check the color of the
radio’s top-panel LED( ). It will glow orange if RF activity is present; it will not be illuminated if the radio indicates a “clear”
channel. When the channel is “clear”, input the PTT signal or Tx serial command and transmit data or audio. Remove the
PTT signal or input Rx serial command when you have finished transmission.
CAUTION : Operation of the transmitter without a proper antenna installed may
result in permanent damage to the radio.
Receive
When you have finished transmission, remove the PTT signal or input Rx serial command. You will receive data from
another radio or hear another person talking from the connected external speaker.
Scan modes
Scanning is a dealer programmable feature that allows you to monitor a number of channels. Your dealer will help you
define a scanning mode and your channel “scan list”
Channel scan
Once the scan list has been established, initiate scan by serial commands. If a conversation is detected on any of the
channels in the scan list, the radio will stop on that channel and you will be able to hear the conversation. At that time, busy
channel data is sent to external equipment or device through serial command. So, you can identify busy channel data as
decoding of received serial command from your radio in the external equipment or device.
Normally, if you try to transmit during scanning, the transmission will be made on the channel that the call was received
during the programmable scan delay time. (The scan delay time is the amount of time the radio will stay on that channel
once activity has ceased. Dealer programming of 4 ~ 7 seconds is typical). The radio will resume scanning once the scan
delay time has expired, and will continue to scan until the serial command for scan stop is inputted by external equipment.
After the scan resumes, if a transmission is made, the radio will transmit on the selected priority channel. This feature is
similar to priority scan TX except for selection of priority channel. You can assign a priority channel by inner dip switch only.
Scan channel delete
To temporarily delete a channel from the scan list, simply input the serial command for scan deletion to the radio while
scanning and stopped on the channel to be deleted. This will temporarily remove that channel from the scan list until the
scan is closed or the radio’s power is reset.
CTCSS / DCS Scanning
To help to block out unwanted calls to your radio, the SD-170 series can be programmed by your dealer to scan for tones.
10
Channel dip switch chart
CHANNEL NO.
SWITCH POSITION
13
12
15
11
14
10
16
SW401
CHANNEL SELECT SWITCH
Serial command
Serial RX/TX Data Format
(1) Asynchronous Serial Data Transfer
(2) Baud Rate : 4,800 bit/sec
(3) Data Bit : 8bit , Non Parity
(4) Stop Bit : 1bit
(5) MSB first transmission
Each serial command is consist of 3 bytes.
1st byte is command and 2nd is data required by command and 3rd is check sum to decide validity of total contents.
Byte0
ST
1st Byte (Command)
SP
2nd Byte (Data)
SP
3rd Byte (Check Sum)
SP
Byte1
ST
Byte2
ST
11
Data Protocol
Protocol for input Serial command
Protocol of data transmission from external equipment or device (: PC) to radio :
External equipment or device
Radio
Input serial command
Response
Receive response
Protocol for output data
Protocol of data transmission from radio to external equipment or device (: PC) :
External equipment or device
Radio
Output Data
(with command)
Receive Data
Output Data
(with command)
Receive Data
Serial Commands
Transmit Command & data
Mode
1.
2.
3.
Channel Change
RTX Mode Send.
Scan
Mode
From PC
To Radio
Transmit
Command
(BYTE0)
0x64
0x61
0x62
Transmit data( BYTE1 )
0x?? :Current channel
R(0x72) : Rx mode
T(0x74) : TX mode
F(0x46) : Scan Stop
S(0x73) : Scan Start
O(0x4F) : Scan Delete
12
Check sum( BYTE2 )
: Transmit Command + data
( 0x64 + Channel )
( 0x61+0x72 )
( 0x61+ 0x74 )
( 0x62+ 0x46 )
( 0x62+ 0x73 )
( 0x62+ 0x4F )
0x66
From Radio
To Pc
0x65
Error
Message
4.
Control of
GPS Power
0x63
GPS
mode
5.
0x6a
Control of
GPS Data
Modem test mode
6.
Modem
alignment
mode
GMSK
0x75
0x7a
0x7c
FFSK
0x7e
0x00 : 1 Channel
0x01 : 2 Channel
0x02 : 3 Channel
0x66 + 0x00
0x66 + 0x01
*Only for Unmute Channel,
Correct Call Channel
0x0f : 16 Channel
It occurs when Scan Delete command comes except
for Busy/Correct Call
It occurs when PTT key is pushed except for
Busy/Correct Call.
It occurrs when channel change command exists
during Scanning.
0x00 : GPS Power Off
( 0x6a + 0x00 )
0x01 : GPS Power On
( 0x6a + 0x01 )
0x00 : GPS Data Disable
( 0x63 + 0x00 )
0x01 : Release GPS Data ( 0x63 + 0x01 )
to DB-15
0x02 : Release GPS Data ( 0x63 + 0x02 )
to Modem
0x78 : Enable test data
( 0x75 + 0x78 )
0x79 : Disable test data
( 0x75 + 0x79 )
0x00 : Disable
( 0x7a + 0x00 )
0x01 : Enable
( 0x7a + 0x01 )
0x00 : Disable
( 0x7c + 0x00 )
0x01 : Enable Mark data
( 0x7c + 0x01 )
0x00 : Disable
( 0x7e + 0x00 )
0x01 : Enable Space data ( 0x7e + 0x01 )
Receive Command & data
Mode
Process Complete
Commands
Transmit
Command
(BYTE0)
0xaa
0x55
Transmit data ( BYTE1 )
Check sum( BYTE2 )
: Transmit Command + data
ACK
NACK
Note)
This command is return signal for receiving command.
If Byte2 and sum of Byte0 and Byte1 among received data are same, Radio would send ACK data and execute
command. If not, Radio sends Nack data.
User would go into next step if receives ACK data. If user receives Nack data, user should send command again.
example) If user changes from 1st Channel to 2nd Channel,
User should send Channel Change Command ( 0x64,0x02 , ( 0x64 + 0x2 ) ) to Radio.
If Byte2 and sum of Byte0 and Byte1 among received data are same, Radio sends ACK data to user and
changes to 2nd channel. If not, Radio would send Nack data.
13
Status indicators and audible alert tones
Your SD-170 series data radio has a sophisticated microprocessor control which provides a range of LED displays. LED
displays operation mode, current status of radio, warning, and etc. Moreover, if you connect the Speaker filtered OUT (Pin
9 of DB-15 connector) to an external speaker, you can hear audible tones at the following conditions:
• Attempt to transmit on a channel that is already in use when busy channel lockout has been programmed into the radio
• Transmission time has exceeded time-out timer programmed length
• When the other group or people finished transmission using repeater
See the status indicators and audible alert tones chart for full details.
STATUS
DESCRIPTION
POWER ON
Busy Channel
Correct Call
Transmit
Transmit Not Allowed
LED COLOR
Green-Yellow-Red
Yellow
Green
Yellow
SCANNING
Normal Scan Mode
Scan Delete
Scan All Delete
Green LED Flash
One time Red LED
Two times Red LED
WARNING
Busy Channel lockout
Time out Time
Before 5S T-O-T
EEPROM Error
Unlock
Communication error with Modem
MCU
Transmit Hang on time
Under channel programmed subaudio SQ, when transmission is
tried by input of FSK or GMSK
data.
Two times Green LED
One time Green LED
One time Green LED
One time Yellow LED
Four times Yellow LED
Green LED flash
Read Mode
Write Mode
Red LED flash
Green LED flash
NORMAL
PROGRAM
AUTO TEST
SQUELCH PROGRAM
MODE
Two times Green LED
Yellow
Open Squelch Mode
Close Squelch Mode
Save Squelch Mode
Init Data Load
Three times Green LED
Two times Green LED
One time Green LED
One time Green LED
14
AUDIBLE TONE
Single Beep Tone
Single Beep Tone
Single Beep Tone
DB 15 PIN descriptions with input/output level
D-Type
Pin No.
Function
Description
Data modulation IN
(Tx Mod)
Signal is directly injected to MOD through data Analog signal
low pass filter without pre-emphasis.
1KHz audio at 60%
peak system deviation
input level =
100 to 120mVrms
Discriminator audio from the SD-170. This is Analog signal
the unprocessed AF signal prior to tone 1KHz audio at 60%
filtering and de-emphasis.
peak system deviation
produces
200 to 300mVrms
Signal from the ‘external device’ to key the TTL level
0V = Tx
SD-170 transmitter.
This line has an internal pull up resistor to +5V. o/c = Rx
Pulling the line to 0V turns on the transmitter.
Note : If you installed option modem board, RS-232 level (option)
you can select RS-232 signal level by +12V = Tx
-12V = Rx
Jumper (CON407, ) on the digital board.
Ground connection to chassis of the radio.
0V (Chassis)
Serial data output for radio control or program. TTL level
It uses asynchronous data format.
Logic level output from SD-170 to indicate TTL level
0V = carrier
whether a carrier is present or not
Note : If you installed an option modem 5V = no carrier
board, you can select RS-232 signal level
by Jumper (CON407, ) on the digital RS-232 level (option)
+12V = carrier
board.
-12V = no carrier
This signal is injected to the MOD at the point Audio
through audio-amplification, pre-emphasis and 1KHz audio at 60%
high pass filtering where sub-audio tone is peak system deviation
mixed with audio.
input level =
6 to 8Vrms
Serial command or data input for radio control TTL level
or program. It uses asynchronous data format.
Audio output from the audio amplifier.
Audio
It’s filtered by tone-filter, de-emphasis circuit.
1KHz audio at 60%
peak system deviation
produces
Nominal
1Vrms @ 8Ω
The Serial data to be transmitted is input to RS-232 level
this pin. It’s only available when option modem
board is installed. Inputted data are modulated
by modem IC and then injected to MOD.
It uses asynchronous data format.
The recovered asynchronous serial data RS-232 level
output from the receiver. It’s only available
when option modem board is installed. It uses
asynchronous data format.
To eliminate data loss according to buffer RS-232 level
overrun of slave MCU’s memory, it indicates
buffer status.
Data unfiltered OUT
(RX disc)
PTT In
(Tx Key)
Ground
Serial Data Out
(TXD)
Busy
(CD)
Microphone
audio IN
Serial data IN
(RXD)
Speaker filtered OUT
filtered
10
Serial data IN for
option modem
11
Serial data Out for
option modem
12
Serial data busy for
option modem
(reserved)
Signal Type
15
Input/
Output
I/P
O/P
I/P
O/P
O/P
I/P
I/P
O/P
I/P
O/P
O/P
13
GPS data input
14
DGPS data input
15
GPS data output
TTL level
Data input for initial setting of GPS module.
It follows NMEA 0183 format and uses
asynchronous data format.
Data input for DGPS Correction of GPS TTL level
module. It follows NMEA 0183 format and
uses asynchronous data format.
Position data output from the GPS module. It TTL level
follows NMEA 0183 format and uses
asynchronous data format.
16
I/P
I/P
O/P
Modem option for data communication
DESCRIPTION
The ACC-513 and ACC-514 are internal option-modems, which are applied to the SD-170 series to increase capability for
data applications. The goal of an internal modem is to improve the efficiency for data transmission and provide maximum
flexibility for user applications. The most obvious method of increasing the data efficiency is to maximize the data signaling
speed in the limited channel bandwidth. But, FSK, called direct FM modulation, has a very wide transmission bandwidth
requirement. To solve this problem a GMSK(Gaussian Filtered Minimum Shift Keying) internal option-board can be used.
Generally data has a wider bandwidth than audio. So, direct application of data is not matched with an audio system and its
application. For instance, if sub-audio (Tone) SQ system applied to a data application, its frequency conflicts with that of
sub-audio. Moreover, the inputted data is filtered by the audio filter circuit resulting in broken data transmission. To
overcome these problems and provide maximum flexibility, an FFSK(Fast Frequency Shift Keying) internal option-board
can be used.
COMMUNICATION BETWEEN DTE AND OPTION-BOARD
Our internal modem options consist of Slave MCU, Modem IC, and extra circuitry. These option-boards directly
communicate with DTE (Data Terminal Equipment) to send and receive meaningful data through the DB-15 connector on
the digital board of the SD-170. These modems are designed to accept RS232 serial data format and are also capable of
high speed wireless data-transmission between two or more devices. More detailed information for the modem option
boards is given in the technical manual for the ACC-513/514. Your dealer will help you define a TX On/Off delay time, RX
On delay time, Baud Rate, Modem Enabled, Modem Baud Rate, Data flow control, and Test Mode.
Table for modem speed
Channel Space
Narrow (12.5KHz)
Standard (25KHz)
DTE Baud Rate
1200
2400
1200
2400
4800
Modem Baud Rate
1200
2400
1200
2400
4800
Table 1. Available Baud rate for FFSK modem
17
Channel Space
Narrow (12.5KHz)
Standard (25KHz)
DTE Baud Rate
4800
4800
9600
Modem Baud Rate
4800
4800
9600
Table 2. Available Baud rate for GMSK modem
Transmission GPS Data through Modem
The SD-170 supports GPS data handling. That may help your implementation for a system related to GPS. If it is not
enough for your application, received position data from the GPS module placed in an SD-170 can be reprocessed by your
own application. The ACC-515 is a GPS module for the SD-170, which releases 11 different output data according to the
NMEA-0183 format, which can be selected by you, the available data should be processed by your application. Received
data from the ACC-515 will be released via the DB-15 connector of the SD-170 and/or transmitted to another system
through an installed modem. More detailed information for the GPS option board is given in the technical manual for the
ACC-515.
18
Option board pin-out chart
FFSK Modem Option board
Connector
Pin
No.
No.
Function
Description
VCC
6V to 12V Power Input
GND
Ground
PTT
Signal from the digital board to transmit data key the SD170 transmitter
TXD_EN
It ensures that the radio has stabilized in transmission
before the data is processed for modulation.
TX_END
To finish transmission, it indicates memory buffer of Master
MCU of digital board is empty.
Connector 1
Input/
Output
I/P
I/P
I/P
O/P
MUTE
Logic level input from digital board to indicate whether a
(Busy)
carrier is present or not
MODEM_EN
Modem Enable input
I/P
POWER_SAVE
Power save input for modem board.
I/P
CMD_EN
It indicates that command for Modem programming is
effective.
10
CMD_IN/OUT
Data Input and Output for Modem programming.
I/P
I/P
I/P,
O/P
11
CMD_CLK
Clock Input for Modem programming.
I/P
12
MODEM_SEL
It Indicates modem type to Master MCU for programming.
O/P
13
RX_IN
The FFSK/MSK signal input for the receiver of modem IC.
I/P
14
TX_OUT
The FFSK/MSK signal output when the transmitter is
enabled.
Connector 2
Serial_IN
The Serial data to be transmitted is input to this pin.
Serial_OUT
The recovered asynchronous serial data output from the
receiver.
Busy
To eliminate data loss according to buffer overrun of slave
MCU’s memory, it indicates buffer status.
Carrier_Detect
Handshake signal for RTS control mode. It indicates
whether Slave MCU of modem has decoded data or not.
PTT_IN
Handshake signal for RTS control mode. It requests data
transmission to Slave MCU of modem.
PROGRAM
It’s reserved input for firmware upgrade.
19
O/P
I/P
O/P
O/P
O/P
I/P
I/P
GMSK Modem Option board
Connector
Pin
No.
No.
Function
Description
VCC
6V to 12V Power Input
GND
Ground
PTT
Signal from the digital board to enable transmitter circuit of
modem board.
TXD_EN
It ensures that the radio has stabilized in transmission
before the data is processed for modulation.
TX_END
To finish transmission, it indicates memory buffer of Master
MCU of digital board is empty.
Connector 1
Input/
Output
I/P
I/P
I/P
O/P
MUTE
Logic level input from digital board to indicate whether a
(Busy)
carrier is present or not
MODEM_EN
Modem Enable input
I/P
POWER_SAVE
Power save input for modem board.
I/P
CMD_EN
It indicates that command for Modem programming is
effective.
10
CMD_IN/OUT
Data Input and Output for Modem programming.
I/P
I/P
I/P,
O/P
11
CMD_CLK
Clock Input for Modem programming.
I/P
12
MODEM_SEL
It Indicates modem type to Master MCU for programming.
O/P
13
RX_IN
The GMSK signal input for the receiver of modem IC.
I/P
14
TX_OUT
The GMSK filtered Tx output signal.
O/P
Serial_IN
The Serial data to be transmitted is input to this pin.
I/P
Serial_OUT
The recovered asynchronous serial data output from the
Connector 2
receiver.
Busy
To eliminate data loss according to buffer overrun of slave
MCU’s memory, it indicates buffer status.
Carrier_Detect
Handshake signal for RTS control mode. It indicates
whether Slave MCU of modem has decoded data or not.
PTT_IN
Handshake signal for RTS control mode. It requests data
transmission to Slave MCU of modem.
PROGRAM
It’s reserved input for firmware upgrade.
20
O/P
O/P
O/P
I/P
I/P
GPS Option board
Pin
Function
No.
Description
Input/
Output
VCC
6V to 12V Power Input
I/P
VBAT
Backup Power Input (3.3V)
I/P
ENABLE
GPS Data Out Enable
I/P
PSAVE
GPS Power Enable (& Power save input for GPS)
I/P
GND
Ground
GPS_OUT
Position Data Output
O/P
DGPS_IN
DGPS Correction Data Input
I/P
GPS_IN
Initial Setting Data Input
I/P
+5V
5V Power Input
I/P
Compatible accessory list
ACC-513 9600 baud GMSK modem
ACC-514 4800 baud FFSK modem
ACC-515 GPS receiver
ACC-160 GPS antenna
ACC-516 PCB Interface - used to separate digital and RF board for alignment
ACC-916 Personality programming software
ACC-2016 Individual programming cable
21

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Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : No
Create Date                     : 2003:11:03 14:59:27+09:00
Modify Date                     : 2003:11:03 14:59:27+09:00
Page Count                      : 21
Creation Date                   : 2003:11:03 05:59:27Z
Mod Date                        : 2003:11:03 05:59:27Z
Producer                        : Acrobat Distiller 5.0.5 (Windows)
Author                          : jslim
Metadata Date                   : 2003:11:03 05:59:27Z
Creator                         : jslim
Title                           : Microsoft Word - sd-170 manual.doc

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