Installation manual

Screen connected to earth at CPU only.
Zone 'COM' terminals are at 0V and may
be for screen earth connection.
IMPORTANT
Ensure that each Keypad's 12V/COM wires
are connected directly to the Control Panel
and not in series. It is recommended that
8-core cable is used to double-up spare
cores with 12V Aux supply feeds to reduce
voltage drop.
+12V
RS485
12V
S12V
KB
KA
COM
COMFORT
MAIN PCB
MICVOICE
Important Comms Locations
No. of Door Stations 1674
No.of Keypads/Intercoms 1675
Ensure JP5 is correctly inserted !
0V
Keypad 1
C B A
I/D = 1
Keypad 2
I/D = 2
Keypad 3
I/D = 3
Door
Station 1
C B A
I/D = 1
C B A
C B A
VC M IC KA KB 12V COM VC M IC KA KB 12V COM VC M IC KA KB 12V COM VC M IC KA KB 12V COM
+12V
COM/0V
KA
MIC
VOICE
KB
Figure 2.2 - Keypad and Door Station Connections
Keypad PCB Versions
The PCB version of the keypad is silk-screened on the bottom right
corner of the board. PC01-007B does not support the Infrared receiver
function which is found within the KP02, while PC01-007C (released in
January 2001) does support Infrared receiver function, with the
appropriate components soldered in, as well as a shunt to permanently
turn on the backlight The differences in the shunt settings are
described below. Keypads (KP01) after January 2001 will also use this
version PCB and may be converted for use as Infrared receivers by
soldering 2 components, an IR Led (3 legs) and a capacitor. This IR led
may be mounted up to 100m away from the keypad PCB, in which case
the cable running to the LED will require soldering on the KP01 or KP02
PCB.
Shunts
JP4: 3 pin header for Backlight selection. “Normal” position for backlight
on when key is pressed, Entry alert or Alarm. “On” position for
Backlight permanently on. Default - “Normal”. This applies to
PC01-007C only
JP5: Keypad/Door Station selection: Shunt positions 1 - 2. for Keypad,
2 - 3 for Door Station. For PC01-007C, JP5 is horizontally oriented
JP6: Keypad key Beep volume. Short for louder beep volume. Default
Open (soft). Not on Door Station PCB
JP7: Tamper Shunt. Short to disable tamper switch. Default shorted
(disabled)
Comfort Installation Manual
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