Memory Expansion Unit (Memu); Program Module Unit (Pmu) - Vodavi Starplus Triad 1/2/3 Installation Manual

Main Processor Board (MPB) Installation

Memory Expansion Unit (MEMU)

This unit is added to the MPB board to provide an additional 512K of RAM
to the system. The MPB board is required when the system capacity
exceeds 48 CO Lines and 96 Stations.
Installing the MEMU
1. Unpack the MEMU from its antistatic conductive bag in the packing
2. On the MEMU, locate the battery switch SW1 and put the switch in
3. Locate the CONN7 and CONN8 connectors (outlined) on the MPB.
4. Position the MEMU so that CONN1 and CONN2 match up with CONN7
5. Push the MEMU onto their respective connectors and make sure it is
Refer to
SIU2.

Program Module Unit (PMU)

The PMU is installed on the MPB and contains the software used by the
system to control features and their function.
Installing the PMU
1. Unpack PMU from its antistatic conductive bag in the packing box.
2. Turn the PMU over so the labels are down prior to inserting the
3. Slide the PMU until the card edge of the PMU fully engages the card
box.
the ON position.
Locate the CONN1 and CONN2 connectors on the MEMU.
and CONN8 respectively on the MPB.
seated properly.
Figure 3-14. This completes the installation procedure for the
module into the plastic guide rails on the MPB.
edge connector of the MPB. Note that the PMU should never be
removed from or installed in a live system.
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