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Reference & Installation Manual
2.9 Programmable Outputs
The Digiplex control panel comes standard with PGM1 and PGM2.
PGM3 to PGM5 are optional. When a specific event or condition
occurs in the system, a PGM can be programmed to reset smoke
detectors, activate strobe lights, open/close garage doors and much
more. For details on how to program the PGMs, refer to section 10
on page 30.
PGM1 provides a maximum 100mA output, PGM2 to PGM4
provide a maximum 50mA output and PGM5 is a relay output that
provides a maximum of 5A. If the current draw on the PGM is to
exceed the current output, we recommend the use of a relay as
shown in Figure 6. PGM1 to PGM4 are normally open outputs and
PGM5 is a normally open or normally closed 5A relay. Also, note
that PGM1 can be programmed as a 2-wire smoke detector input.
For more information, refer to section 2.15.1 on page 7 and section
10.4 on page 31 of this manual.
Figure 6: PGM Relay Output
2.10 Combus Connections
The combus is a 4-wire combus that provides power and two-way
communication between the control panel and all modules
connected to it. All addressable detection devices, keypads and
Digiplex modules are connected to the combus, which can support
up to 95 modules. Connect the four terminals labeled RED, BLK,
GRN and YEL of each detector, keypad or module to the
corresponding terminals of the control panel as shown in Figure 3
on page 3. Please note that all modules can be connected in a star
and/or daisy chain configuration. The final device on the combus
should not be more than 914m (3000ft) from the control panel. The
total run of every wire in the system must not exceed 914m
(3000ft). For example, if 10 runs of wire are each 305m (1000ft),
the total would exceed the system’s capacity. For information on
how to assign a detection device to a zone in the control panel,
please refer to Zone Programming on page 11.
Before connecting a module to the control panel,
shutdown the control panel by removing AC and
battery power.
2.10.1 Connecting the Combus in Noisy Environments
When installing the combus wires in proximity to high electrical
interference such as neon lights, motors, high-voltage wiring,
transformers, or when connecting the combus across separate
buildings, you must use shielded cables. Connect the shielded
cable as detailed below:
Within the Same Building: Strip the outer jacket at one end of the
shielded cable to expose the shield and connect the shield to the
control panel ground (not the dialer ground), while leaving the
shield at the other end of the cable open (floating).
Across Separate Buildings: Strip the outer jacket at one end of
the shielded cable to expose the shield. In the same building that
houses the control panel, connect the exposed shield to a cold
water pipe or any other earth ground available, while leaving the
shield at the other end of the cable open (floating). The same
configuration applies for any subsequent building.
2.11 Single Zone Connections
In addition to the combus, the Digiplex control panel includes eight
hardwired input terminals for use with traditional hardwired door
contacts, smoke detectors and/or motion detectors. One to eight-Zone
Expansion Modules that connect to the combus are also available.
Devices connected to hardwired input terminals must be assigned to a
zone and the zone's parameters must be defined. Please refer to
Zone Programming on page 11. for more information. Figure 7
demonstrates single zone (ATZ disabled) hardwire input terminal
connections recognized by the Digiplex system. For UL listed
installations, use EOL resistor part #2011002000.
Figure 7: Single Zone Input Connections
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