B • Installation
Doc. 031644-02 9/03
B-7
The table below describes the pin assignments for the Relay and TTL
connectors. Connections 1 and 2 can be configured in the software to
switch any low-voltage control. The switched current must be less than
200 mA and 42 V peak.
Pin
Assignment
Input Pin Function
1
Relay 1 output
Active
2
Relay 1 output
Ground
3
Relay 2 output
Active
4
Relay 2 output
Ground
5
TTL 1 output
Active
6
TTL 2 output
Active
7
TTL 1 input
Active
Autozero
8
TTL 2 input
Active
Remote inject
9
TTL 3 input
Active
UV lamp on/off
10
TTL 4 input
Active
Visible lamp on/off
11
TTL input or output
Ground 1
12
TTL input or output
Ground 2