AT&T 7300 series, 7500 series, 7100 series, 2500 series, 7200 series, 7400 series manual ⎜ Pin

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

⎜

⎜

⎜

⎜

PC 7300

⎜

⎜

⎜

⎜

⎜

⎜ NO.

⎜

PLUS

⎜

⎜

7404D

⎜

MPDM

⎜

MTDM

⎜

(NOTE 1)

⎜

⎜ 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)

⎜

⎜

LEGEND:

X

=

Bidirectional

I

=

Input

O

=

Output

(Number)

=

Indicates a reference note (see next page).