DSC HS2128 Reference Manual page 24

Figure 3-10 Bell Wiring
The Bell output is supervised and power limited by 2A thermistor. If unused, connect a 1000Ω resistor across Bell+ and Bell-
to prevent the panel from displaying a trouble. See "Troubleshooting" on page 47.
3.1.11 Telephone Line Wiring
Wire the telephone connection terminals (TIP, Ring, T-1, R-1) to an RJ-31x connector as indicated in the following diagram.
For connection of multiple devices to the telephone line, wire in the sequence indicated. Use 26 AWG wire minimum for wir-
ing.
Figure 3-11 Telephone Line Wiring
Note: Ensure that all plugs and jacks meet the dimension, tolerance and metallic plating requirements of 47 C.F.R. Part 68,
Sub-Part F. For proper operation, no other telephone equipment must be connected between the control panel and the tele-
phone company facilities.
3.1.12 Smoke Detector Wiring
All zones defined as Fire must be wired according to the following diagram:
Figure 3-12 Smoke Detector Wiring
See"[001] Zone Types" on page 70 for fire zone operation.
Note: Smoke detectors must be latching type. To reset a smoke detector, enter [*][7][2].
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