Digital Monitoring Products Inc PC0128 User Manual

 

Nominal 12 VDC is supplied by terminal 5 on the panel to power alarm bells or horns. The output is rated

for a maximum of 1.5 Amps with a 40 VA transformer. This output can be steady, pulsed, or Temporal Code 3

depending upon the Bell Action specified in Output Options programming. Terminal 6 is the ground reference

for the bell circuit. If using a horn or siren, a 1k 0hm resister should be added across the bell circuit for

supervision.

Terminals 7, 8, 9, and 10 of the panel are designated as the keypad data bus. In addition to keypads, the

XT30/XT50 allows the connection of any combination of zone expansion modules, Glassbreak Detectors, and

PIRs to the keypad bus up to the maximum of eight devices.

Nominal 12 VDC is supplied at terminal 7 to power keypads and zone expanders. This is also where power 

for any auxiliary device is supplied. The ground reference for terminal 7 is terminal 10. The maximum output

is rated at 500mA. All auxiliary devices totaled together must not exceed the Terminal 7 maximum current

rating of 500mA. When the number of keypads or other expansion devices attached exceeds the amount of

output current available, attach an external power supply as defined in the Model 710 Installation Sheet 

(LT-0310).

Data receive from keypads and zone expanders.

Data transmit to keypads and zone expanders.

Terminal 10 is the ground reference for LCD keypads, zone expanders, and any auxiliary devices being

powered by terminals 7 and 11.

The two LEDs located just above terminal 13 indicate keypad transmit data (XMIT) and keypad receive data

(RCV). The bottom LED flashes green to indicate data being transmitted from the panel. The top LED flashes

yellow to indicate data being received by the panel from keypads, zone expanders, etc.

A locking 4-pin header (J8) is provided to connect a keypad when using a DMP Model 330 Programming Cable.

This provides a quick and easy connection for programming the panel.

Keypad Bus expansion zones are numbered in groups of four corresponding to the address. Example: address

1 is zones 11-14 and address 5 is zones 51-54. There are a maximum of 32 zones possible on the Keypad Bus.

All keypad zones terminate with a 1k 0hm EOL resister.

1

11-14

2

21-24

3

31-34

4

41-44

5

51-54

6

61-64

7

71-74

8

81-84