Alcatel-Lucent 7750 SR-a4, Installation Manual, Page: 101 / 232

Installing PSUs
7750 SR-a4 and SR-a8 Installation Guide 101
Figure 31: –48 VDC Ground and Power Connection
Preparing the PSU Ground and Power Cables
Alcatel-Lucent does not supply the ground cable. You must use a minimum #8 AWG wire,
fitted with terminal rings suitable for #8 AWG wire.
Alcatel-Lucent does not supply the DC cable. The PSU compliance rating requires that you
use #8 AWG wire, fitted with terminal rings. To ensure that the terminal rings fit the terminal
block, Alcatel-Lucent recommends the following #8 AWG terminal rings:
• Insulated: Molex 19071-0178
• Non-insulated: Molex 19130-0200
• Sealing: Molex 19164-0889
Required tools and hardware
Table 43: –48 VDC Ground and Power Connection Descriptions
Key Description
1 DC power grounding terminal with M4 screw
2 Positive (+) terminal with M4 screw
3 Negative (–) terminal with M4 screw
4 Clear plastic sliding safety cover for the terminal block. The cover rests on three
raised guides to provide clearance for the cable connectors. During installation,
the cover can be removed temporarily to access the terminal screws.
Pwr
S tat
+ -
24556
4
1
3 2