AT&T DEFINITY 7200 series User Manual
Page 299
LEAD DEFINITIONS
E-7
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Table E-6. EIA RS-232C (V.28) LEADS SUPPORTED FOR AT&T TERMINALS
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PIN PC
6300/
DTDM/
PDM/
TDM/ ADU/MADU
NO. PLUS
PC 7300
7404D MPDM MTDM (NOTE
1)
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1
X X X X X X
2 O O I
I
O
I
3 I
I O O
I
O
4 O
I
I
O
I
(Note 2)
5 I
I O O
I
O
(Note 3)
6 I
I O O
I
O
(Note 3)
(Note 3)
7
X X X X X X
8 I
I O O
I
O
(Note 3)
(Note 3)
9 O
O
10 O
O
11
12 O
I
(Note 4)
(Note 4)
13
14
15 I
I O
O
I
(Note 5)
16
17 I
I O
O
I
(Note 5)
18 I
I
I
O
19
20 O
O
I
I
O
I
21 I
O
(Note 6)
22 I
I
I
O
I
(Note 7)
(Note 7)
(Note 7)
(Note 8)
23 I
O
(Note 9)
(Note 9)
24 O
O
I
I
O
(Note 5)
25 I
O/I I/O
(Note 10)
(Note 11)
(Note 12)
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LEGEND:
X = Bidirectional
I = Input
O = Output
(Number)
=