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DSC Power 832 - Keybus Operation and Wiring; Current Ratings - Modules and Accessories

DSC Power 832
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G E T T I N G S T A R T E D
7
For proper operation there must be no other telephone equipment connected between the control
panel and the telephone company facilities
.
Do not connect the alarm panel communicator to telephone lines intended for use with a FAX machine.
These lines may incorporate a voice filter which disconnects the line if anything other than FAX signals
is detected, resulting in incomplete transmissions
.
2.3 Keybus Operation and Wiring
The Keybus is used by the panel to communicate with all modules connected and by the modules to talk to the
panel. The RED and BLK terminals are used to provide power while YEL and GRN are clock and data.
The 4 Keybus terminals of the panel must be connected to the 4 Keybus terminals or wires of all modules.
The following conditions apply:
Keybus should be run in minimum 22 gauge quad (0.5mm), two pair twisted preferred
the modules can be home-run to the panel, connected in series or can be T-tapped
any module can be connected anywhere along the Keybus; you do not need a separate Keybus wire run for keypads,
zone expanders etc.
no module can be more than 1,000'/305m (in wire length) from the panel
shielded wire is not necessary unless wires are run in an area that may present excessive RF noise or interference
Example of Keybus Wiring
B
C
A
PANEL
500’
500’
150’
150’
B
C
A
PANEL
500’
500’
150’
150’
NOTE: Module (A) is wired correctly as it is within 1,000'/305m of the panel,
in wire distance.
Module (B) is wired correctly as it is within 1,000'/305m of the panel,
in wire distance
Module (C) is NOT wired correctly as it is further than 1,000'/305m
from the panel, in wire distance.
2.4 Current Ratings - Modules and Accessories
In order for the PC5015 system to operate properly, the power output capabilities of the main control and expansion
devices must not be exceeded. Use the data presented below to ensure that no part of the system is overloaded so
that it cannot function properly.
System Outputs (all 12 V
DC)
PC5015 VAUX: 550 mA. Subtract the listed rating for each keypad, expansion module and accessory
connected to VAUX or Keybus.
BELL: 700 mA. Continuous Rating.
3.0 A Short Term. Available only with standby battery connected.
PC5204 VAUX: 1.0 A Continuous Rating. Subtract for each device connected.
3.0 A Short Term. Available only with standby battery connected.
PC5208 VAUX: 250 mA. Subtract for each device connected. Subtract the total load on this terminal
from the PC5015 VAUX/Keybus output.
PC5108 VAUX: 100 mA. Subtract for each device connected. Subtract the total load on this terminal
from the PC5015 VAUX/Keybus output.
PC5015 Device Ratings (@ 12 V
DC)
LCD5500 Keypad: 50 mA PC5208 Output Module: 50 mA
PC5532 Keypad: 45 mA PC5132 Wireless Receiver Module: 125 mA
PC5516 Keypad: 45 mA PC5132-433 Wireless Receiver Module: 80 mA
PC5508 Keypad: 45 mA PC5320 Multiple Wireless Receiver Module: 55 mA
LCD5500Z Keypad: 85 mA Escort5580 Module: 150 mA
LCD5501Z Keypad: 90 mA PC5928 Audio Interface Module: 65 mA
LCD5501Z32-433 Keypad: 260 mA PC5921 Intercom Audio Station: 20 mA
PC5502Z2 Keypad: 17 mA PC5921 EXT Door Box Audio Station: 20 mA
PC5532Z Keypad: 85 mA PC5921 EXT/R Door Box Audio Station: 35 mA
PC5516Z Keypad: 85 mA PC5936 Audio Interface Module: 65 mA
PC5508Z Keypad: 85 mA PC5937 Eight-port Expansion Module: 5 mA
PC5108 Zone Module: 35 mA PC5400 Printer Module: 65 mA
• PC5108L Downlook Interface: 60 mA DLM-4L v1.0: 180 mA
PC5200 Power Supply Module: 20 mA • PC5700 Fire Module: 150 mA
PC5204 Output Module: 20 mA PC5100 2-Wire Addressable Device Interface: 40 mA
Other Devices
Read the manufacturer’s literature carefully to determine the maximum current requirement (during activation or
alarm) and use this value for loading calculations. Do not allow connected devices to exceed the system
capabilities during any possible operational mode.
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