DOC: GLT.MAN-126
ISSUE:
1
www.gltexports.com
DATE:
14/4/08
ALARM SYSTEMS
ADDRESSABLE INTERFACE UNITS
ZIOU – ADDRESSABLE INPUT OUTPUT UNIT
5
0
4
9
6
1
3
87
2
5
0
4
9
6
1
3
87
2
5
0
4
9
6
1
3
87
2
D
Connections & Address Setting
The ZIOU has the following connections:-
Loop IN +
Loop IN – (2 connections)
Loop OUT +
Loop out –
MON I/P (2 connections)
AUX RELAY (3 connections, NO, CM, NC)
Normally the loop cables will be connected one pair of +/- to the IN terminals (use either IN-
terminal), and the other pair of cables to the OUT terminals. If the isolator needs to be
PERMANENTLY bypassed, connect the – OUT to the spare –IN terminal. To temporarily bypass
the isolator (eg for a DVM cable continuity check), fit a shorting link to position J1.
The ZIOU is now addressed by 3 rotary switches, one for 100`s one for 10`s, one for units. Select
an address between 1 & 126. (The picture shows 037)
PCB Identification
The same PCB is used for The
ZIU (input only), ZIOU (Input
with volt free relay output), and
ZSCC (sounder circuit
controller). Each PCB will have
an Identification mark (tick or
“X”) to show which model it is.
Description
The Zeta addressable Input Output Unit (ZIOU) is used to
interface external equipment to any Zeta Analogue
Addressable fire alarm system. It has a switch monitoring
input with a 47k end of line resistor, and a Volt Free SELV
relay output.
The unit has a built in loop short circuit isolator to help
keep the unit operational in the event of a problem on the
addressable loop wiring.
It has 3 indication LEDs on the front of the unit. One for
Alarm, one for local fault and one for addressable loop fault (Isolator active).
