N-Sw-Snbu-Aa, Wt Except Canada - IBM 3274 51C Maintenance Information

0 0
8
Sw
3
[!I
PN 5167247 or 8564480
2-Wire 4-Wire Description
8
- -
Sw line ~mit level-low
7
On On
Nonswitched line xmit level
6
-
-
Nonswitched line xmit
level-low
5
-
On
Echo clamp
Sw 1
4
-
-
Clear to send
3
-
On Clear to send
2 On
-
2-wire nonswitched line
1 On On Equalizer setting
8
- -
OdBm 1 Pos On
-1 dBm 2 Pos On
7
-
-
-2 dBm 3 Pos On
-3 dBm 4 Pos On
6
-
-
-4 dBm 5 Pos On
-5 dBm 6 Pos On
5
- -
-6 dBm 1,7 Pos On
Sw2
-7 dBm 2,7 Pos On
4
-
-
-8 dBm 3, 7 Pos On
-9 dBm 4,7 Pos On
3
-
-
-10 dBm 5, 7 Pos On
-11 dBm 6, 7 Pos On
2
- -
-12 dBm 1,8 Pos On
-13 dBm 2, B Pos On
1
On
On
-14 dBm 3, B Pos On
(Note)
(Note) -15 dBm 4, 8 Pos On
8
-
On 4-wire nonswitched line
7
-
- o
dBm 1 Pos On
-1 dBm 2 Pos On
6
-
-2 dBm 3 Pos On
-
-3 dBm 4 Pos On
-4 dBm 5 Pos On
5
-
-
-5 dBm 6 Pos On
-6dBm 1,7 Pos On
Sw3
4
-
- -7 dBm 2, 7 Pos On
-8 dBm 3, 7 Pos On
3
- -
-9 dBm 4, 7 Pos On
-10 dBm 5,7 Pos On
-11 dBm6,7PosOn
2
-
-
-12 dBm I, Sw 1 - Pos 7
-13 dBm 2, Sw 1 - Pos 7
1
On On
-14 dBm 3, Sw 1 - Pos 7
(Note) (Note)
-15 dBm 4, Sw 1 - Pos 7
4 On On
Sw4
3 On On
Equalizer Setting
2 On
On
1 On
On
Note: "On" indicates switch-on position; all
others are off. See Figure C-7 for switch setting
according
to
country,
~
...J
-e
><
.,
c:
::J
~
(I)
OJ
~
...J
-e
><
.,
c:
:.J
~
2:
Figure C-S_ 1200-bps Integrated Modem Card (No.
(4),
N-Sw-SNBU-AA, WT except Canada
8
8
Sw
Sw
1
2
Appendix C. Connector, Board, and Card Locations C-S