ADS Environmental Services Model 4000 530017 A0 - Manual (Page 76)

Communication and Activation 4-7
Stripping ½ inch (13 mm) of insulation from each wire
5. At the pedestal end of the cable, fold over both exposed wires
(doubling the thickness). Insert each wire into an uninsulated
#10 ring terminal lug (22-18 gauge), and crimp the wires to the
lugs.
Wiring the Telephone Cable to the Monitor
After preparing the telephone cable, wire the telephone cable to the
monitor in the following way:
1. Seat the mating telephone connector onto the communications
port (COMM.) on top of the monitor.