Black Box COMPACT T1 quick start External Alarm Connector, Pin # Description Explanation

Quick Start

Interface Connectors

External Alarm Connector

The external alarm 6-pin connector with one input pair (pins 5 and 6)

and two output pairs (pins 1 and 2 - major alarms; pins 3 and 4 - minor A

alarms).

L

A

R

M

6

5

4

3

2 1

The pinouts are as follows:

Pin #	Description	Explanation
1	Major Alarm +	The major alarm output is available for power supply or
2	Major Alarm -	major alarm failure alerting. The maximum voltage across
		the contacts is 350 V, and the maximum current is 150 mA.
		This alarm is closed when power is off.
3	Minor Alarm +	The minor alarm output is available for power supply or
4	Minor Alarm -	minor alarm failure alerting. The maximum voltage across
		the contacts is 350 V, and the maximum current is 150 mA.
		This alarm remains open when power is off.
5	Alarm In +	The alarm inputs provide 5 VDC across the two contacts,
6	Alarm In -	and generate an alarm when a short circuit is detected
		between the contacts.
		The alarm generated is a minor severity alarm.

Compact T1 - Release 6.1 15