Ptx1000 Dc Power Cable Specifications - Juniper PTX1000 Hardware Manual

Table 15: PTX1000 DC Power Specifications
Item
DC input voltage
DC input current rating
Typical power consumption
Maximum power consumption

PTX1000 DC Power Cable Specifications

PTX1000 DC power supplies require a D-Sub 3W3- type connector. The three pins on the connector
provide –48 VDC input (–), return (+), and ground connections to the power supply.
NOTE: The optional right-angle DC power cables, CBL-JNP-PWR-DSUB2 and
CBL-JNP-PWR-DSUB3, do not include a ground connection wire.
Regardless which DC power cable you use, you must connect the PTX1000 to earth ground
before you connect it to to power, using the procedure described in
to Ground" on page
DC power cables, each approximately 13.1 ft (4 m) long, are supplied with the PTX1000. The provided
cables include the three-pin connector on one end and insulated wires at the opposite end, for connection
to the site's DC power distribution system.
Table 16 on page 47 lists the specifications for the PTX1000 DC power cables.
Table 16: PTX1000 DC Power Cable Specifications
Juniper Model Number
CBL-JNP-PWR-DSUB
(straight cable)
Specifications
40 A maximum
1050 W
1425 W
81.
Wire Function
–48 VDC input (–)
Return (+)
Ground
Rated operating voltage: –48 VDC through –60 VDC
Operating voltage range: –40 VDC through –72 VDC
"Connecting the PTX1000
Insulation Color Wire Size
Blue 8 AWG (8.4 mm²), 90° C
Black 8 AWG (8.4 mm²), 90° C
Green and yellow 8 AWG (8.4 mm²), 90° C
47