CHAPTER 3 NDA-24296
Page 392
Revision 1.0
PA-M69
Power Failure Transfer

PA-M69

Power Failur e Transf er

1. General Function
This circuit card executes a C.O. line to the telephone or the release of a C.O. line due to a power supply
failure, system down, software order, etc. This circuit card is also provided with the change circuit of 12
circuits.
Figure 3-104 Location o f P A-M69 (PFT, 12NCU) w ithin the System
TEL MDF
TEL
(AO, BO)
MDF
LC
(AI, BI)
LC TSW COT MDF
TRK
(TI, RI)
NCU
MDF
CO
(TO, RO)
(NITE KEY)
P ositi on w i thi n the Sy s tem
ATTCON