Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 570

6-132 Section 060-INDP-610 Maintenance Procedures Guide
Table 6-12
Quad SIO PCA (A6 and B6) options - part number: NT6M60BA
Device Position/setting
type
Jumper 1-2 Channel D Rx external
(J9) 2-3 Channel D Rx internal
Jumper In Select external timing source
(J10) (Modem).
Out Select internal timing source
(BMC).
Jumper In Select external timing source
(J11) (Modem).
Out Select internal timing source
(BMC).
Jumper In Select external timing source
(J12) (Modem).
Out Select internal timing source
(BMC).
Jumper In Select external timing source
(J13) (Modem).
Out Select internal timing source
(BMC).
Strap None used
DIP 1On channel A select
Switch Off (normal setting)
(S6) 2 On channel B select
Off (normal setting)
3 On channel C select
Off (normal setting)
4 On channel D select
Off (normal setting)
Note: Baud rate selection for the four BMC channels is made at the four rotary switches (S2, S3,
S4, and S5) on the front of the PCA. The baud rate selected can be for a synchronous channel or
an asynchronous channel. The following chart provides the conversion for asynchronous to
synchronous baud rates and the rotary switch position for the applicable selection.
297-6201-502 Standard 01.02 September 2000
Function
Channel D receive
clock
Select internal or
external source for
channel A transmit
clock
Select internal or
external source for
channel B transmit
clock
Select internal or
external source for
channel C transmit
clock
Select internal or
external source for
channel D transmit
clock
NOT USED.
(Sheet 2 of 4)
Setting
Factory On-site
1-2
In
In
In
In
Off Must be
same as
Off factory
setting.
Off
Off