Avaya MCC1 Installation And Upgrades page 299

Figure 71: R1V3 System 75 cabinet
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Remove control carrier A [75 small upgrade]
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CAUTION:
When removing the cable adapters, be careful that none of the short pieces of shrink
tubing come off the 4 corner pins of the pin-field block. Otherwise, when the new
equipment is connected, -48 volts could short to ground.
NOTE:
Before disconnecting each cable adapter, note its position.
1
Remove the cable and AHF3 cable adapters from between the A and B carriers (see
TDM connections for small R1V3 System 75,
2
Disconnect one end of the 8 ground straps (between the A and B carriers) from the A carrier (see
Figure 73, Locations of grounding jumpers,
new A carrier.
3
Slide the latch up, and disconnect the P1 (small 9-pin) connector and the P2 (large 37-pin)
connector from the A carrier (see
carrier,
the carrier.
4
Remove the fan trim plate by pulling straight off.
SI Installation and Upgrades
June 2004
AHF4
CABLE ADAPTER
RMSS
AC POWER
CORD
RMSS OR
HCMR
RIBBON CABLE
Figure 74, Location of P1 and P2 connectors on System 75
on page 301). Move the cables into a position where they will not interfere with removing
System 75 Small-Cabinet to R8si (Blowback)
Task List: System 75 Small Cabinet to R8si
SMALL CABINET
SLOT 07
PORT CARRIER B
REAR VIEW (COVERS REMOVED)
on page 300). They will not be reused.
on page 301). These straps will be reconnected to the
FANS
Figure 72,
299