CTI 2500-RIO-B Installation and Operation Guide V1.4
6
T
T
RIO Connector –
Phoenix Contact
T Termination
Poenix Contact
#2761826
1.3.3. Recommended Installation of Redundant Remote Bases
Pictured in figure 2 is an example of the recommended hardware and cabling layout for achieving
optimum dual media redundancy. The recommended RIO connector is made by Phoenix Contact and
the model number is 2761826.
Termination resistors must be installed at the ends of the trunk line, as shown in figure 2. The resistor
value required depends on the trunk cable as specified in the table below:
Cable Type
Resistor Value
Belden
®
3105A
120 ohms, 5%, ¼ W
Belden
®
9182
150 ohms, 5%, ¼ W
Belden
®
9860 or 9271
120 ohms, 5%, ¼ W
The terminating resistor is installed between terminal numbers 3 and 8, the transmit and receive
lines.
Local Base
Figure 2: Recommended Dual Media Redundancy Layout
A
B
A
B
Remote Bases
KEY
