90
Installing an Avaya MCC1 Media Gateway
October 2002
Typical Power and Ground for a Mixed AC/DC-Powered Media Gateway
Figure notes
1 DC power supply
2 Ground Discharge Bar
3 Approved Ground
4 1 AWG up to 50 feet (15.2m) or engineered for less than 0.5 volt drop per conductor
5 To Coupled Bonding Conductor terminal block at Main Distribution Frame
6 Coupled Bonding Conductor
7 Media Gateway ground block
8 AC power-distribution unit
9 AC power cord
10 AC power source
Connect Remote Power Off Cable
‘‘Remote Power Off Cable Connections — Part 1’’ on page 92
shows the location of the
Remote Power Off (RPO) cable. The opposite end of the cable connects to the Emergency
Power Off (EPO) switch located outside of the equipment room.
Even though the equipment room EPO switch disconnects main AC power to the equipment
room, it cannot disconnect the battery power from the J58890CH. An auxiliary set of contacts
inside the EPO are used for this function.
1 Plug the RPO cable into the connector shown in ‘‘Remote Power Off Cable Connections
— Part 1’’ on page 92.
-48V -48V RTN
75A
PN PN
-48V
cydfacdi KLC 031202
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