Figure 27: Jcs 1200 Dc Power Terminal Connectors - Juniper JCS 1200 Hardware Manual

The Routing Engines in the JCS 1200 platform are connected to power but are not
turned on. After the JCS 1200 platform has power, depending on the configuration
settings, the Routing Engines might have to be individually turned on.
Related Topics
Connecting the JCS 1200 DC Platform to DC Power
The JCS 1200 DC power inputs are configured for DC isolated return (DC-I). The DC
return terminal or conductor is not connected to the equipment frame or the
grounding means of the equipment.
CAUTION: Only trained service personnel other than Juniper Networks service
technicians are authorized to make the connections to and disconnections from the
–48 volt DC power source. Juniper Networks service technicians are not certified or
authorized to install or remove the –48 volt power cable. The customer is responsible
for ensuring that only trained service personnel install or remove the –48 volt power
cable.
The JCS 1200 DC platform has four DC power terminal connectors (see
Figure 27 on page 63). Each DC terminal has four M6 (0.25-inch) studs, one for –48
V DC, one for RETURN (
Each terminal has a terminal cover. Remove the terminal cover before connecting
cables to each terminal, and reinstall the terminal cover on each terminal before
supplying power to the JCS 1200 platform. For more information, see "Replacing a
JCS 1200 DC Terminal Cover" on page 115.

Figure 27: JCS 1200 DC Power Terminal Connectors

JCS 1200 Platform Power Overview on page 61
Preventing Electrostatic Discharge Damage to the JCS 1200 Platform on page 154
Powering On a JCS 1200 Routing Engine on page 73
Connecting the JCS 1200 DC Platform to DC Power on page 63
RTN ), and two for connecting the grounding cable (
Chapter 7: Connecting the JCS 1200 Platform
Connecting the JCS 1200 DC Platform to DC Power
GND ).
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