The XTM test plug is available
for testing modular type relays. The connection
plugs can be removed from the
modular relay, and the XTM test
plug can be inserted
for current injection testing and input/output access. The modular relays have
two connection plugs and require two test
plugs, one right-hand test plug and one
left-hand test plug. The handle of the test plug
may be pulled out and turned to the right
for easy access to connection points.
The card extender provides versatility for testing plug-in
modules in relay. The module to be
tested can be removed from the relay, the
card extender inserted in place of the
module, then the module can be inserted
into the card extender. This gives complete
access to module card for test purposes.