D9112 Operation & Installation Manual
Page 60
74-06144-000-C 2/96 © 1993-1996 Radionics
Quick Reference Terminal Description

Terminal Name Description

1, 2 CLASS 2
TRANSFORMER
Connect 16.5 VAC, 40 VA transfor m er fo r prim ar y power supply.
3+AUX POWER Supplies up to 1.4A at 10.0 VDC to powered devices. Use terminal 9 for comm on.
Shares circuit breaker with terminal 24 and the Expansion Port (J4).
4BATTERY
NEGATIVE ONLY Connect 12V, 7Ah rechargeab le lead acid type battery’s negative terminal (-) to
terminal 4.
5 (+) BATTERY
POSITIVE ONL Y Connect 12V, 7Ah rechargeable lead acid type battery’s positive terminal (+).
6 (+) + STEADY OR
PULSED
Supplies up to 2 A at 10.0 VDC to 13 .9 VDC for steady or pulsed alarm output.
Use terminal 9 for common. Pr ogrammed as Relay A.
Shares circuit breaker with terminals 7 and 8.
7(+) + ALTERNATE Supplies up to 2 A at 10.0 VDC to 13.9 VDC for steady or pulsed ala rm output.
Use terminal 9 for common. Pr ogrammed as Relay B.
Shares circuit breaker with terminals 6 and 8.
D136 Plug-in Relay required: Install a D136 in socket K 3 for output at ter minal 7.
8 (+) + SWITCHED
AUX POWER
Supplies up to 1.4 Amps at 10 .0 VDC to 13.9 VDC . Use terminal 9 for common.
Programm e d as Relay C
Continu ous outp ut inter ruptedb y CMD 4 7 or alar m verif ication .
Shares circuit breaker with terminals 6 and 7.
D136 Plug-in Relay required: Install a D136 in Socket K1 for output at ter minal
8.
9COMMON Terminal 9 is common for Au xilliary Power, Alternate Alarm Power, and Switched
Aux Power (terminals 3, 6, 7 an d 8) .
10 EARTH GROUND Connect to earth ground. A cold water pipe or ground ing rod is preferred.
Do not connect to telephone or electrical ground.
11, 13, 14, 16, 17,
19, 20, 22
ON-BOARD
POINTS (inputs) Connect normally open and/or norm ally closed detection devices to loop wiring.
1 k Ω resis tor requi red at end of loop.
12, 15, 18, 21 ON-BOARD
POINTS
(common)
Loop returns for on-boar d points.
23 (-)
24 (+) ZONEX COMMON
ZONEX POWER +
Use terminals 23 and 24 to po we r ZONE X modules such as the D8125 POPEX
module, the D8128A OctoPO PIT, and the D8129 OctoRelay. Shares cir cui t
breaker with terminal 3 and the Expansion Port (J4).
25
26
ZONEX IN 2
ZONEX OUT 2 Connect ZONEX modules for points 73 to 135 and relays 65 to 128 to these
terminals.
27
28
ZONEX IN 1
ZONEX OUT 1 Connect ZONEX modules for points 9 to 71 and r elays 1 to 64 to these terminals.
29 (-) COMMON Common terminal for SDI devices
30
31
DATA BUS B
DATA BUS A Terminals 30 and 31 are a two wi r e bus that drives the command center s, pri nt er
interface, and other SDI devices.
32 (+) POWER +
Power for command centers, printer interface and other SDI devi ce s. Th is
separate protected powe r ou tp ut for SDI devices is not affected by shorts on any
other terminal.