Chapter 2
Intelligent Field Panel
RBH Access Technologies Inc. Integra32
™
Hardware Guide
9
TCP/IP Connection
For TCP/IP connections, wire to the TCP/IP interface as you would to the PC, with a
direct RS-232 connection. The TCP/IP interface is programmed with an IP address and
connected to the LAN (contact the local system administrator for an IP address).
Additional controllers can be connected via the RS-485 connection terminals.
RS485 Connection
The IRC-2000 controller supports a two-wire RS485 interface. Jumpers JP1 is to be set
on the lower two pins for RS485 operation.
The RS485 interface allows the distance between the controller and the PC to be
extended up to 4000 feet (1200 meters). RS485 requires one twisted pair shielded cable.
Cable Specification
Single twisted three-conductor, shielded, 18 to 22 AWG
Maximum Cable Length
4000 feet (1200 meters)
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