ICT Protege PRT-RDE2-PCB, Руководство по установке

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PRT-RDE2-PCB Protege Ethernet 2 Reader Expander Installation Manual | June 2017
13
UL
ULC
If an external power supply is required, a UL 603 or UL 294 listed power-limited power supply must be
used to comply with UL installation standards, and a CAN/ULC-S318 or CAN/ULC-S319 listed
power-limited power supply must be used to comply with ULC installation standards.
Warning: The 12V S+ and S- Communication input must be supplied from only ONE point.
Connections from more than one 12V supply may cause failure or damage to the Reader Expander or
device supplying slave communication power.
The recommended module network wiring specifications are:

CAT5e / CAT6 are also supported for data transmission when using ground in the same cable.

24AWG twisted pair with characteristic impedance of 120ohm

Belden 9842 or equivalent.

Maximum total length of cable is max 900m (3000ft)
Warning: Unused wires in the cable must not be used to carry power to other devices.
Shielded Cables

Shielded cables can be used in noisy environments (with RF and electromagnetic interference).

If a shielded cable is used, the shield must be connected at only one end of the cable. DO NOT connect a
shield at both ends. Refer to the following diagram for the recommended shield connection.
External Power Supply
or AUX Supply Out
NA N+ N- NB NA N+ N- NB NA N+ N- NB
S hield i s frame
grounded at
one point
S hield s are
connected together
and I
s olated
S hielded Cable
Product #1 Product #2 Product #3
S hielded Cable
S hield not
connected
Recommended Shield Connection
i
The EOL (End Of Line) jumper setting MUST be set in the ON position for the LAST slave module on
the RS485 network. EOL is ON when the jumper is closest to the EOL text.
EOL OFF EOL ON
EOL Jumper