Juniper Networks M5 - Manual (Page 67)

Power Guidelines, Requirements, and Specifications
For field-wiring connections, use copper conductors only.
For other electrical safety information, see “Electrical Safety Guidelines and
Warnings” on page 135.
Figure 19 shows how to attach the grounding and power cables. The grounding cable
attaches to one of the grounding points on the upper edge of the router rear panel. The
accessory box shipped with the router contains the lug used to secure the grounding cable the
grounding point. The power cables insert into the quick connect terminals located on each
power supply— the input terminal is labeled -48V and the return terminal is labeled RTN.
Before router installation begins, a licensed electrician must attach the cable
lug to the grounding cable that you supply. A cable with an incorrectly
attached lug can damage the router (for example, by causing a short circuit).
Figure 19: DC Power and Grounding Cable Connections
1331
RTN
-48V
Grounding
point
Grounding
lug
To ground
For information about the DC power supply, including electrical specifications and a
description of components, see “DC Power Supply” on page 18. For instructions on
Prepare for Router Installation 47