User`s guide

4 RLY6B
5 RLY7A
6 RLY7B
7 RLY8A
8 RLY8B
Trigger/Start Interface Connector
An eight-pin snap lock modular connector (AKZ-950-STL8W)
provides the trigger interface connection. The connector is
labeled on the back-panel as ‘START INPUTS’.
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 the connector is labeled according to the pin’s
function:
START INPUTS (J4)
1 START1
2 GND1
3 START2
4 GND2
5 START3
6 GND3
12 SS420x User’s Guide