38
en | System wiring
Security Escort
2018.03 | SE3v1.0 | DOC
Technical Reference Manual
Robert Bosch (SEA) Pte Ltd
5.2.3
SE coordinator/SE receiver wiring notes
Mounting
Normally, the enclosures are mounted first with the laying of cables and wires. Then, the
electronics are mounted, wired, and tested. The enclosures come with their own mounting
hardware (H500 Hardware Kit) for mounting the enclosure to a wall and mounting the circuit
board to the enclosure.
–
Mount the enclosure to the mounting surface.
–
Mount the circuit board to the enclosure.
Leave at least 10 cm (4 in.) of wire hanging out of the unit. Do not leave extra wire inside the
enclosure as this could impact the receiving antennas.
Wiring
The SE coordinator and SE receivers communicate with each other using the RS-485 interface.
The communication connector is identified by their 3 terminal points, namely A, GND and B.
The recommended data transmission speed is 19200 bps @ 1km (default) and 115 kbps @
500m. Please refer to the table below for the full range of data transmission speeds:
Data transmission speed (bps)
Range (m)
19200
1000
38400
900
57600
800
115200
500
Tab.
5.2:
Range of data transmission speeds
The recommended wiring for RS-485 communication is 24-AWG Cat5e using 4-conductors,
with unshielded twisted pair for indoor installations, and shielded twisted pair for outdoor
installations.
Figure
5.4: RS-485 Connector
The SE coordinator sends any received data from the SE receivers or SE transmitters to the
Central Console Software via the Ethernet cable. The same Ethernet cable can also power the
SE coordinator via Power over Ethernet (PoE) without needing an external DC input. The
Ethernet connected is identified by the label PoE Ethernet on the SE coordinator. Connect the
PoE using the standard Cat 5e Ethernet cable and above. PoE provides the maximum total
power of 12.95 Watt to the SE coordinator, and complies with the IEEE802.3af class 0
standard.
Setting the loop address
Use the address dip switch ADDR to configure the RS-485 loop address of the SE receiver.
Each SE coordinator/SE receiver on a loop must have its own unique address. Only addresses
0 through 15 are valid.
The SE coordinator always uses address 0. You do not need to set the address for the SE
coordinator. Therefore, the dip switch ADDR is not available on the SE coordinator.
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