ZyXEL Communications MES-3528 User Manual page 39

Insert the alarm connector into the ALARM slot.
3
Figure 15 Connecting a Sensor to the ALARM Slot
Smoke
Detector
ALARM
Connector
To connect an output device such as an alarm bell, repeat the previous steps but
4
this time connect to either pins (1,2) or (2,3) on the ALARM connector.
You can also daisy-chain the external alarm to another ZyXEL Switch which
supports the external alarm feature. If daisy-chaining to a ZyXEL switch that is a
different model, check your switch's documentation for the correct pin
assignments.
Use wires of the correct gauge to connect either of the power output pin pairs (1-
1
normal close, 2-common) or (2-common, 3-normal open) on the ALARM
connector to the input power pin pairs of an ALARM connector on another ZyXEL
Switch.
MES-3528 User's Guide
11 10 10 9 8 7 6
Alarm Input Pins
Chapter 3 Hardware Overview
Spring
Clip
5 4 3 2 1
Alarm Output Pins
39