Installing the LM100 gateway
Page 38
Senstar LM100 Product Guide
Silver Network wiring connections
Silver Network specifications
•
Data rate - fixed 57.6 k bps
•
Maximum 60 devices spread over up to 4 independent network loops
•
Two communication Channels (Side A, Side B)
•
Response time - 1 second, or less from alarm source to Network Manager (per loop)
•
Network termination - not required
•
Transmission media/maximum separation distances between network nodes:
•
RS-422 copper wire - 1.2 km (0.75 mi.) - 2 pairs per Channel (see
)
•
Multi-mode fiber optic cable (820 nm) - 2.2 km (1.4 mi.) - 2 fibers per Channel - optical
power budget 8 dB
•
Single-mode fiber optic cable (1310 nm) - 10 km (6.2 mi.) - 2 fibers per Channel - optical
power budget 8 dB
•
Ethernet - Category 5 cable, 100 m between PoE switch and gateway (see
Note
A network interface card is required on the gateway to enable Silver
Network communications.
Note
Use low capacitance shielded twisted pair data cable for RS-422,
62.5/125 multi-mode fiber optic cable,
9/125 single-mode fiber optic cable, and
Category 5 Ethernet cable.
The maximum separation distances require high quality transmission
media and sound installation practices.
CAUTION
Both the gateway and the network interface cards contain static
sensitive components. Follow proper ESD handling procedures when
handling the cards.
Ensure the expansion header on the NIC is properly lined up and fully
seated in T2 on the gateway.
Note
The PoE NIC typically receives power over its Ethernet connection. It
provides power to the gateway through T6, the gateway power input.
The gateway then supplies power to the NIC through the expansion
header. If the PoE NIC does not receive power over its Ethernet
connection, the gateway must have another source of DC power
connected to T6.