D2112/D2112E Installation Manual
Page 15
74-07111-000-D 1/96
© 1995 Radionics
D133
Relay Module
N/O 1
COMM1
N/C 1
X1- ( Connect to terminal 11
for External Relay 1)
X1+
15
16
17
20
21
22
23
24
25
26
27
28
29
19
18
7
8
10
14
13
9
11
12
D164
Phone Cord
T1
R
R1
T
Brown
Green
Red
Gray
To RJ31X Phone Jack
See RELAYS in D2112/D2112E
Program Entry Guide to program
External Relay 1 for Ground
Start.
Figure 12: D133 for Ground Start
Points
Point Parameters
D2112 Point 1
Point 1 is a powered sensor loop. Review the
Radionics Technogram:
Smoke Detectors
Compatible with the D2112 (73-07115-000) for a list
of compatible detectors.
Point 1 is supervised with a 2.0K EOL resistor.
Points 2 to 6 (1 to 6 on D2112E)
Points 2 to 6 are supervised with a 1.0K EOL
resistors
Open Loop = Greater than 8.9 VDC, but less
than 13.9 VDC.
Normal Loop = Greater than 2.5 VDC, but less
than 8.5 VDC.
Shorted Loop = Greater than 0.0 VDC, but less
than 2.0 VDC.
(D2112 Only) Points 7 and 8
Points 7 and 8 are not supervised with EOL
resistors.
Open Loop = Greater than 2.4 VDC, but less
than 13.9 VDC.
Normal (Closed) Loop = Greater than 0.0 VDC,
but less than 1.4 VDC.
Point Response Time
The panel scans point sensor loops every 500
milliseconds. A point must be faulted for 2 scans
before the panel initiates an alarm.
Short and restoral
on circuit toggles
arming state.
COMMON
POINT INPUT
End of Line
Resistor
Figure 13: Keyswitch
Keyswitch
Description
You can connect a momentary contact arming
station (keyswitch) to turn the D2112 on and off. The
keyswitch is connected to a point sensor loop (points
2 to 6 only, do not use points 7 and 8).
You can use the external relay outputs and D133
Relay Modules to activate arming status lights for
keyswitch arming stations. See the
Relays section
D2112/D2112E Program Entry Guide.
Programming
See the
POINT CODES Group in the D2112/
D2112E Program Entry Guide for the correct
programming for points used for keyswitches.
Installation
Connect the end-of-line resistor for the point at the
keyswitch so that the switch shorts the resistor when
it operates. An open on the circuit produces an
alarm if the area is armed and a trouble if it is
disarmed. See Figure 13.
