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10 REFERENCE & INSTALLATION MANUAL
2.6 TELEPHONE LINE CONNECTION
In order to report system events to the central station, you must connect the incoming telephone company wires into
the TIP and RING connections of the control panel and then run the wires from T1 and R1 to the telephone or
telephone system as shown in Figure 2.1 on page 7.
2.7 BELL OUTPUT CONNECTION
The BELL+ and BELL- terminals power bells, sirens and other warning devices requiring a steady voltage output
during an alarm. The bell output supplies 12VDC upon alarm and can support one 30-watt or two 20-watt sirens.
The bell output uses a fuseless circuit and will automatically shut down if the current exceeds 3A. When this occurs
the Maximum Bell Current failure will only appear in the keypads’ Trouble Display (see page 50) during an alarm. If
the load on the BELL terminals returns to normal, the control panel will re-instate power to the BELL terminals during
the next alarm. When connecting sirens, please verify correct polarity. Connect the positive lead to the BELL+
terminal and the negative lead to the BELL- terminal of the control panel as shown in Figure 2.1 on page 7.
If the BELL output is not being used, the Bell Disconnected failure will remain in the keypads’ Trouble
Display (see page 50). To avoid this connect a 1KΩ resistor across the BELL terminals.
2.8 PROGRAMMABLE OUTPUT CONNECTIONS
When a specific event occurs in the system, a PGM can reset smoke detectors, activate strobe lights, open/close
garage doors and much more.
2.8.1 PGM FOR 1728EX AND 1728
The Spectra 1728/EX control panels include one on-board programmable output (PGM).
PGM1 provides a maximum 150mA output. If the current draw on the PGM is to exceed
the current output, we recommend the use of a relay as shown in Figure 2-2. For details
on how to program the PGM, refer to PGM Programming on page 41.
2.8.2 ALARM RELAY AND PGMS FOR 1738EX AND 1738
The Spectra 1738/EX control panels include two on-board programmable outputs
(PGMs). PGM1 and PGM2 provide up to 1A and PGM2 can be used as a strobe output
(see page 42). The PGMs are limited by the power source being used. If powered by the
BELL+ terminal, the combined current consumption of the bell output and PGM must not
exceed 1A. If it is powered by the
AUX+, the devices connected to the auxiliary power
supply and PGM must not exceed 1.1A. If it is powered by an external device, PGMs can supply 1A. If the current
draw on the PGM is to exceed the current output, we recommend using a relay (see Figure 2.4). For details on how
to program the PGM, refer to PGM Programming on page 41.
The Spectra 1738/EX control panels also have an optional 5A relay. This relay can be connected as shown in Figure
2.4. The Alarm Relay can be programmed to follow the bell output or the activation and deactivation of the Global
PGM (see Alarm Relay Options on page 42).
Figure 2.4: Relay and PGM Connections
Figure 2.3: PGM