SCR Engineers BUM LD module User Manual SCR One
SCR Engineers Ltd. LD module SCR One
Users Manual
SCR
LD Module
SPECIFICATIONS
[CONFIDENTIAL]
Zeev K.
Version 0.4
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Version History:
0.10
Initial version
0.20
Update Block Diagram
0.3
Update new LD Module, Block Diagram & FCC ID
0.4
Target market removal
Contents
1 Global system specifications ................................................................................................... 4
1.1 System components ........................................................................................................ 4
1.2 TAG/IDU/BU communication overview .......................................................................... 4
2 LD Module of BU-500 .............................................................................................................. 5
2.1 BU-500 Units contains Internal Antenna ......................................................................... 5
2.2 LD Module Options .......................................................................................................... 6
2.3 Block diagram ........................................................................................................................ 7
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The FCC Wants You to know
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
-Reorient or relocate the receiving antenna.
-Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-Consult the dealer or an experienced radio/TV technician for help.
FCC Warning
Changes or modifications to this equipment not expressly approved by the party responsible for
compliance (SCR Engineers Ltd.) could void the user’s authority to operate the equipment
LD Module FCC ID: AMUBUM
Manufacturer: SCR Engineers Ltd.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
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1 Global system specifications
All units are for outdoor use, required Radio regulations according to target market &
Low voltage 24VDC regulation (except for tags which powered by internal battery).
1.1 System components
LD Module – RF module of BU-500
BU-500 – LD Base unit, with RS-485 network interface.
BU-500E – LD Base unit, with 10BASE‑T/100BASE-TX Ethernet network
interface.
H-TAG-LD – Activity based tag with RF transceiver & IRDA receiver.
HR-TAG-LD – Activity & Rumination based tag with RF transceiver & IRDA
receiver.
IDU530 – Tag identification unit with CAN-Bus network interface, IRDA
transmitter & 2.4GhZ Receiver ONLY.
IDU510 – Tag identification unit with SCR C.L. network interface, IRDA
transmitter & 2.4GhZ Receiver ONLY.
1.2 TAG/IDU/BU communication overview
Tag
Tag initiate sending data
BU500
Data
Ack
Tag
BU initiate sending messages
BU500
Ack
Message 1
Data
Ack
20 minutes
Message 1 retry*
Message 2
Ack
Tag IDU
Data
ID Req
Optic
RF
Legend:
Only IDU can initiate ID request
*When no ACK from tag
No retries when tag sends data
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2 LD Module of BU-500
LD Module FCC ID: AMUBUM
RF Transceiver: Atmel AT86RF233
RF Frequency: 2.405-2.48GHz
Modulation type: QPSK
RF Channels: 5Mhz separation,16 ch
Baud Rate: 250K Bit/Sec (Not configurable)
RF Module output power: 0dBm maximum
Operating voltage:- from limited 5VDC supply from BU500/E main board.
The unit design as specific design for BU500/E.
Two Modules assembled on BU500 Antenna and by flat cable to BU500 main board
BU-500/E (Base Unit) is a unit used to collect messages from tags and send them to
central management system.
The unit replies to each tag upon receiving a message. They unit is also used to set
various tag parameters.
2.1 BU-500 Units contains Internal Antenna
Internal Antenna type: Two polarizations, internal diversity patch directional Vertical
and Horizontal
Antenna gain: 10dBi Maximum gain.
Average RF data: 3 messages/hour, 3mSec/message, ~30bytes/message per tag.
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2.2 LD Module Options
Option 1 (not in use): Direct assembly on BU-500 board with connection to antenna by
coax cable.
Option 2: Direct assembly on the antenna with connection to BU-500 board by flat cable