User`s guide

The program card must remain inserted with the ESD shield in place, whenever
the controller is in operation. Removing the program card during operation
causes the controller to go into a reset state. To recover from this state, push the
program card back into place and press the controller’s reset (//) button.
Figure 2–5 shows the program card location in a controller front bezel and its
associated eject button.
Figure 2–5 HSJ Program Card and Eject Button Locations
CXO-4333A-MC
PROGRAM CARD
EJECT BUTTON
HSJ40
PROGRAM CARD
2.1.9 Nonvolatile Memory (NVMEM)
The HS array controller module has 32 KB of nonvolatile memory. This memory
stores parameter information and assists with value-added functions.
2.1.10 Maintenance Terminal Port
The maintenance terminal port is used to plug in a maintenance terminal for
setting the HS array controller’s initial parameters.
Each array controller has an MMJ on its front bezel that supports EIA–423
compatible terminals. The MMJ connector is offset-keyed for HSJ, HSD30, and
HSZ40–Ax array controllers for use with DECconnect™ wiring.
2–10 Controller Technical Description