Users Manual Part 1

Figure 34: -48 VDC Connections on the Expansion Cabinet Junction Panel
4.5.3.2
Connecting -48 VDC Power Source to the Equipment Cabinet
Procedure:
1 WARNING: Make sure that all power is off to prevent accidental contact with high
voltage and injury to personnel.
2 Route two runs of bulk wiring between the MTS DC input connector and the facility power supply
-48 VDC connections.
3 Make sure that the wire runs are properly routed to the cabinet, allowing adequate slack.
4 Connect the free ends of the wire to the MTS DC plug, which is provided with the MTS.
Following the industry standard for positive earth systems unless local regulations state
something different:
NOTICE: Do not use other types of DC Connectors than specified here.
• Blue/Black wires: see Figure 35: DC Plug MTS LiTE/MTS 2 (Motorola P/N 3166501A01) –
Blue/Black Wires on page 110 for MTS 2 and Figure 37: DC Plug MTS 4 (Motorola P/N
3166501A02) – Blue/Black Wires
on page 111 for MTS 4.
• Red/Black wires: see Figure 36: DC Plug MTS LiTE/MTS 2 (Motorola P/N 3166501A01) –
Red/Black Wires on page 110 for MTS 2 and Figure 38: DC Plug MTS 4 (Motorola P/N
3166501A02) – Red/Black Wires on page 111 for MTS 4.
6802800U74-AP
Chapter 4: Hardware Installation
109