A-13 – Nortel Networks Passport 4400 User Manual
Page 129
Cable Diagram Pin Assignments
Passport 4400 Hardware Installation Manual
A-13
Figure A-10. Cable Model No. NTAU22AA - 4400 to DCE
NC
NC
Receive Data A
20
6
Receive Data B
45
24
Receive Clock A
22
Receive Clock B
47
External Transmit Data Clock A
8
17
External Transmit Data Clock B
33
35
Transmit Data Clock A
6
4
Transmit Data Clock B
31
22
Data Clock A
21
5
Data Clock B
46
23
Clear to Send A
9
9
Clear to Send B
34
27
Data Set Ready A
10
11
Data Set Ready B
35
29
Carrier Detect A
11
13
Carrier Detect B
36
31
Request to Send
12
7
Ground
48
25
Receive Data Clock A
22
8
Receive Data Clock B
47
26
Unassigned
13
16
Ground
49
30
Data Terminal Ready
37
12
Ground
50
34
DTE COM
18
37
Ground
43
19
DCE COM
19
20
External Select A
1
Ground
26
Cable In
14
Ground
39
37-Pin
V.36 Male
To Data Commmunication
Equipment (DCE)
MD50
Male
Type 1 Cables: Receivers shall have both input terminals connected to individual terminals
at the load interchange point, independent of all other receivers.
To 4400
Data Terminal
Equipment (DTE)