User`s guide

Relay Interface Connector
Two eight-pin snap lock modular connectors (AKZ-950-
STL8W) provide the relay interface connection. The
connectors are labeled on the back panel as ‘Relay Outputs’.
Caution!
The solid-state relays (SSRs) in the SS420x are rated for
a maximum of 110mA, and safety considerations limit
the maximum switching voltage to 40VDC or 28VRMS
AC. The SS420x inputs can detect switch closures or
can be driven by TTL compatible logic. The output
switches are open collector switches.
Each pin of each connector is labeled according to the pin’s
function:
RELAY OUTPUTS (J2)
1 RLY1A
2 RLY1B
3 RLY2A
4 RLY2B
5 RLY3A
6 RLY3B
7 RLY4A
8 RLY4B
RELAY OUTPUTS (J3)
1 RLY5A
2 RLY5B
3 RLY6A
SS420x User’s Guide 11