User's Manual

Chapter 3 Installation
3.12 Communications Interfaces
3.12.1 PSTN Phone Line
To reduce the risk of fire, use only #26 AWG or larger (I.e. #24 AWG) UL
listed phone line cord.
The following steps should be performed to connect the PSTN phone line to the surge
protector in the control cabinet (where applicable):
1. Run a #26 AWG or larger phone line cord (with RJ-11 connector) from the
building/site PSTN termination point to the DRU.
2. Connect the phone line cord RJ-11 connector to BC11– see Figure 3-45
.
3. Remove the lid screws from the Telco surge protector.
4. Install the cable grommets on the Telco surge protector:
 Use the small grommet for cord with a 0.114 to 0.225 inch diameter
 Use the large grommet for cord with a 0.250 to 0,350 inch diameter
5. Connect another #26 AWG or larger phone line cord (with RJ-11 connector) to BC11
on the inside of the control cabinet bulkhead panel.
6. Run the cable to the Telco surge protector.
7. Cut the cable to the proper length and remove approximately 1 inch of the outer
insulation to expose the individual wires.
8. Remove 0.25 inches of insulation from each wire to expose the copper conductor.
9. Insert the copper conductor into the “SURGE” screw terminals on the surge
protection modules and tighten the screws.
10. Replace the Telco surge protector lid.
SX03-30000-01-M01
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