Nortel Networks Passport 4400 User Manual

Page 124

Advertising
background image

Cable Diagram Pin Assignments

Passport 4400 Hardware Installation Manual

A-8

Figure A-5. Cable Model No. NTAU19AA - 4400 to DTE Equipment

25-Pin RS-232

Female

MD50

Male

To 4400

Data Terminal

Equipment (DTE)

To Data Terminal

Equipment (DTE)

Clear to Send

9

4

Request to Send (RTS)

Data Set Ready

10

20

Data Terminal Ready (DTR)

Carrier Detect

11

11

Unassigned (UN)

Request to Send

12

5

Clear to Send (CTS)

Unassigned

13

8

Carrier Detect (CD)

Data Terminal Ready

37

6

Data Set Ready (DSR)

External Receive Clock 232

15

15

Serial Clock Transmit A (SCT A)

External Transmit Clock 232

40

17

Serial Clock Receive A (SCR A)

Transmit Data 232

16

3

Receive Data (RD)

Transmit Clock 232

41

2

Transmit Data (RD)

Receive Data Clock 232

42

24

Serial Clock Transmit External (SCTE)

Ground

43

7

Signal Ground (SG)

Cable Present Status

14

25

Unasigned (UN A)

Ground

39

Receive Data B

45

Ground

48

Transmit Clock B

46

Ground

49

Receive Clock B

47

Ground

50

1

Frame Ground (FGND)

Advertising