Nortel Passport 15000 Hardware Installation And Maintenance page 649

7 Set the controller toggle switch to AMPS. With the BIP off, the reading is
zero since there is no load. Otherwise, a reading of 5 amps or more
indicates there is a fault with the setup.
8 Do the testing and adjustments to the system as prescribed by the Astec
document 167-9021-133 Advanced Power Systems MFA150 Modular
Front Access Power System Detailed Installation Guidelines and
Procedures Manual.
9 Trouble-shoot and replace any MFA150 hardware part that is not
supplying a nominal range of power to the Passport 15000 or 20000.
Passport 15000, 20000 Hardware Installation, Maintenance, and Upgrade
Chapter 17 Hardware procedures 649
5.2S2