DSC PDigital Security PC1565, Installation Manual, Page: 8 / 56

Keybus Terminals – AUX+, AUX-, YEL, GRN
The Keybus is used by the panel to communicate with mod-
ules and vice versa. Each module has four Keybus terminals
that must be connected to the four Keybus terminals on the
panel. For more information, see section
2.3 “Keybus Opera-
tion and Wiring” .
Programmable Output Terminals – PGM1 and PGM2
Each PGM output is designed so that when activated by the
panel, the terminal will switch to ground.
PGM1 can sink up to 300mA of
current. Connect the positive
side of the LED or buzzer to
AUX+, the negative side to
PGM1. If more than 300 mA of
current are required, a relay
must be used. Please study
PGM wiring in the accompany-
ing diagram.
PGM2 operates similarly to
PGM1. However, PGM2 can
only sink up to 50mA of cur-
rent. For a list of the program-
mable output options, see
section 5.11
“PGM Output
Options” on page 19.
Zone Input Terminals – Z1 to Z6
Each detection device must be connected to a zone on the
control panel. We suggest that one detection device be con-
nected to each zone; wiring multiple detection devices to a
single zone, however, is possible. For zone wiring specifics,
please see section 2.8
“Zone Wiring” on page 5.
Telephone Connection Terminals – TIP, RING, T-1, R-1
If a telephone line is required for central station communica-
tion or downloading, connect an RJ-31X telephone jack in the
following manner:
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2.3 Keybus Operation and Wiring
The Keybus is used by the panel to communicate with all
connected modules and vice versa. The red (AUX+) and
black (AUX-) terminals are used to provide power, while the
yellow (YEL) and green (GRN) terminals are clock and data
respectively.
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The following restrictions apply to Keybus wiring:
• Keybus should be run in minimum 22 gauge quad
(0.5mm); two pair twist is preferred.
• The modules should be home-run to the panel but can be
connected in series or T-tapped.
• Any module can be connected anywhere along the Key-
bus. You do not need to run a separate Keybus wire for
keypads, etc.
• No module can be more than 1,000'/305m (in wire length)
from the panel.
• Shielded wire should not be used.
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NOTE:
Module (A) is correctly
wired within 1,000'/305m
of wire from the panel.
Module (B) is correctly
wired within 1,000'/305m
of wire from the panel.
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 PC1565 system to operate properly, the power
output capabilities of the main control and the expansion
devices must not be exceeded. Use the data presented below
to ensure that no part of the system is overloaded and cannot
function properly.
PC1565 (12 V
DC
)
AUX+: ........550mA: Subtract the listed rating for each key-
pad, expansion module and accessory con-
nected to AUX+ or Keybus.
BELL: .........700mA continuous rating; 3.0A short term. Avail-
able only with standby battery connected.
PC1565 Device Ratings (at 12 V
DC
)
• LCD5500Z Keypad: 85mA
• LCD5501Z Keypad: 90mA
• LCD5501Z32-433T Keypad: 260mA
• PC1555RKZ Keypad: 85mA
• PC5508Z Keypad: 75-85mA
• PC5400 Serial Module: 65mA
• PC5132 Wireless Receiver: 125mA
Other Devices
Please read the manufacturer’s literature carefully to deter-
mine the maximum current requirements for each device—
during activation or alarm—and include the proper values for
loading calculations. Connected devices must not exceed
system capabilities during any possible operational mode.
2.5 Keypad Assignment
There are eight available addresses for keypads. LED key-
pads by default are always assigned to address 1. LCD5500Z
keypads are always assigned to address 8. You will need to
assign each keypad to its own address (1 to 8). Keypad
assignment is required, as it tells the panel which addresses
are occupied. The panel can then generate a fault when a
keypad supervisory is not present.
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How to Assign Keypads
Do the following at each keypad installed on the system:
1. Enter [*][8][installer’s code] to go to installer programming
2. Enter [000] for Keypad Programming