Installation manual

May 2009 AfiFree Terminal 155i Installation Manual 47
Wiring the Communication Cable
Connect the communication cable as follows:
 Installations using AfiFree Connection Boxes—see Wiring to an AfiFree
Connection Box (below)
 Installations using PICBs—see Connecting to a Plug-in Connection Box (page
48)
Wiring to an AfiFree Connection Box
1. Route the communication cable from the computer to the connection boxes.
2. Wire the communication cable to the connection boxes according to Figure 17.
3. In the last connection box on the communication line, install a 120 resistor
across contacts 7 and 8 of the connection box.
This serves as a termination for the communication line.
4. Install an AfiPort to the desired port of AfiCom1.
5. Connect the communication cable to the P8 connector cable (Figure 23).
6. Connect the P8 connector cable’s pre-wired D-type connector to the AfiPort
installed in step 3.
Communication Braid
for AfiFree
Black
Red
AfiCom1
P8 Connector
Cable
Red
Green
Port 6 / Port 8
RS 485
Shield
Figure 23: Connecting the PC