Juniper MX960 Hardware Manual page 161

Example 2: Improper Setting of the DIP Switch
user@host>show chassis power
PEM 0:
State: Online
AC input: OK (2 feed expected, 2 feed connected)
Capacity: 4100 W (maximum 4100 W)
DC output: 0 W (zone 0, 0 A at 56 V, 0% of capacity)
PEM 1:
State: Present
AC input: Check (2 feed expected, 1 feed connected)
Capacity: 1700 W (maximum 4100 W)
The PEM 0 status indicates the system is Online, the AC Input is OK, is running at full capacity (4100 W)
with two AC feeds expected and two AC feeds connected. But notice the status for PEM 1. The State is
Present and the AC input is Check (2 feed expected, 1 feed connected). This indicates there is a mismatch
between the DIP switch setting and the number of feeds connected. Therefore, the power supply is running
at reduced capacity (1700 W). If PEM 1 should be running at full-capacity, verify that there are two feeds
connected to the power supplies and the DIP switch is set to position 1.
RELATED DOCUMENTATION
MX960 Router Grounding Specifications | 197
Electrical Specifications for the MX960 AC Power Supply | 203
Calculating Power Requirements for MX960 Routers | 215
Power Requirements for an MX960 Router | 205
AC Power Circuit Breaker Requirements for the MX960 Router | 220
AC Power Cord Specifications for the MX960 Router | 221
Site Electrical Wiring Guidelines for MX Series Routers
Connecting Power to an AC-Powered MX960 Router with Normal-Capacity Power Supplies | 335
Connecting Power to an AC-Powered MX960 Router with High-Capacity Power Supplies | 337
MX960 Power Supply LEDs on the Craft Interface | 20
138