Terminate Wiring
19
Connect to Serial RS-232
Integrators and users of advanced systems can interface with the Unison system through the RS-232
connection on the left I/O board. This connection provides an interface with external devices capable of
sending or receiving RS-232. This connection can also receive serial commands from a transmitter and
provide rack and system status when queried.
Connect to Ethernet RJ-45
Network interface to the ERn enclosure is made through the RJ-45 connector (labeled Ethernet) located
on the left I/O board. Use the included Network Termination Kit to terminate the incoming building
wire.
Connect to Contact Inputs and Contact Outputs
The left I/O provides interface with external devices via contact closure on removable pluggable
connectors. Up to four contact inputs are available and can be configured for either maintained or
momentary operation as set in the P-ACP. Up to four contact outputs are also available and are preset
for normally open operation. Reference the
Paradigm Architectural Control Processor Configuration
Manual
for details on configuration.
T e r m i n a t e C o n t a c t I n p u t s
1:
Remove the contact input connector located on the left I/O board. Each connector is labeled for
installation convenience.
2:
Strip 5 mm (3/16 in) of insulation from the ends of each wire pair.
3:
Loosen the desired number of contact input screw terminals and related ground screw terminals
on the connector.
4:
Insert contact closure 1 into the terminal labeled “IN1” on the connector and tighten the screw
terminal.
5:
Insert the related ground wire for contact closure 1 into the terminal labeled “GND” on the
connector and tighten the screw terminal.
6:
Repeat for each contact input and ground wire pair (up to four total).
Note:
The RS-232 cable (not supplied) should follow common RS-232 pinout for a DB-9
receptacle (pin 2 is RS-232 Rx, pin 3 is RS-232 Tx, and pin 5 is ground).
Note:
All Ethernet terminations must follow IEEE 802.3 and be terminated to the T568B
standard.
Note:
Typical contact I/O wiring is color coded as follows: contact 1 brown, contact 2
orange, contact 3 yellow, contact 4 green. All commons and ground voltages are
typically black or red.
