Northern Telecom BCS35 Replacement Manual page 83

Table 7–1
56K interface circuit pack (A7 and B7) options – part number: NT6M94AA
Device type
(number)
Jumper Out = select card 1
(P2) In = select card 2
Jumper Out = 256K (27C256)
(P4) In = 512K (27C512)
Jumper Out = disable watch dog timer
(P5) In = enable watch dog timer
Jumper Out = disable CPU clock
(P8) In = enable CPU clock
Jumper Out = disable SCC clock
(P9) In = enable SCC clock
Strap None used
DIP None used
Switch
Rotary None used
Switch
Switch None used
Notes:
Note 1: See Figure 7–1.
Note 2: There are no customer–definable options on this circuit pack. Information is shown for reference only. This data is
to be used for verification during initial DPP system installation and/or circuit pack replacement to make sure the replacement
circuit pack is set–up the same as the circuit pack being replaced.
Position/setting
56K Interface circuit pack 67
Function
Card 1 or 2 address
selection
256K/512K EPROM
enable
Watch Dog enable
CPU clock enable
SCC clock enable
End
DPP Card Replacement Guide BCS35 and up
Setting
Factory On–site
Out
Out
Out
In
In