Northern Telecom BCS35 Replacement Manual page 68

52 QSIO circuit pack
Table 6–1
QSIO circuit pack (A6 and B6) options – part number: NT6M60AA
Device type
(number)
DIP
Switch
(S1)
Note: Baud rate selection for the four DPP channels is made at the four rotary switches (S4, S5, S6,
and S7) on the front of the circuit pack. The baud rate selected can be set for synchronous or
asynchronous operation at S2 and S3. The chart shows conversion for asynchronous to
synchronous baud rates and rotary switch position for the applicable selection.
Switch
position
0
1
2
3
4
5
6
7
Rotary 0
Switch 1
(S4) 2
3
4
5
6
7
297-1001-536 Standard 01.03 August 1996
Position/setting
Position =
0 5
1 6
2 7
3 8
4 9
Asynch
rate
50
75
110
134.5
150
300
600
1200
50 8
75/1200 9
110 A
134.5 B
150/2400 C
300/4800 D
600/9600 E
1200 F
Function
Address Select the logical
address of the SIO
A circuits.
B
C
D
E
F
Synch Switch
rate position
800
1200
1760
2152
2400
4800
9600
6
19200
1800 BX.25 Polling Link
2000 (Synchronous channel;
2400 2400 baud) Channel A
3600 baud rate select. (Odd
4800 numbers
7200 dashes on the face of
9600 the rotary switch.)
6
19200
(continued)
(continued)
Setting
Factory
A
Asynch
rate
8 1800
9 2000
A 2400
B 3600
C 4800
D 7200
E 9600
F 19200
5
(4800 5, or 6, de–
baud) pending
appear as
(This switch is inac-
tive for DPP systems
with 56K polling.)
On–site
Must be
the same
as the
factory
setting.
Synch
rate
N/A
N/A
N/A
N/A
N/A
N/A
N/A
6
N/A
May be 4,
on the
polling
speed.