Ericsson 1/KRB 101 1108, Инструкции по установке, эксплуатации и обслуживанию

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© 2001 – Ericsson Amplifier Technologies Inc.
8
2.8 Verify Connections
Recheck all connections. Make certain that all connections are correct and secure.
2.9 Verify DC Supply Voltage
Measure the DC supply voltage that will power the MCPA at the subrack terminals. The DC
supply voltage must be 27 VDC
±
0.5 VDC. In addition, the power supply circuit breaker
rating must be 75 amperes minimum. Refer to Section 3 for operating instructions.
CAUTION
DO NOT OPERATE MCPA WITH A DC SUPPLY VOLTAGE
OUTSIDE OF THESE LIMITS. DAMAGE WILL OCCUR TO THE
MCPA FROM IMPROPER SUPPLY APPLICATION.
NOTE
When +27VDC is initially connected and applied to the MCPA,
all of the LED’s on the front panel except for the DC On will
illuminate momentarily.