Nortel Networks Passport 4400 User Manual
Page 122
Cable Diagram Pin Assignments
Passport 4400 Hardware Installation Manual
A-6
Figure A-3. Cable Model No. NTAU21AA - 4400 to DTE Equipment
NC
NC
MD50
Male
34-Pin
V.35 Female
To 4400
Data Communication
Equipment (DCE)
To Data Terminal
Equipment (DTE)
NC
NC
NC
NC
Receive Data A
20
P
Send Data A (SD A)
Receive Data B
45
S
Send Data B (SD B)
External Receive Data Clock A
4
Y
Serial Clock Transmit A (SCT A)
External Receive Data Clock B
29
AA
Serial Clock Transmit B (SCT B)
Receive Data Clock A
22
U
Serial Clock Transmit External A (SCT A
Receive Data Clock B
47
W
Serial Clock Transmit External B (SCT B)
Transmit Data A
3
R
Receive Data A (RD A)
Transmit Data B
28
T
Receive Data B (RD B)
External Transmit Data Clock A
5
V
Serial Clock Receive A (SCR A)
External Transmit Data Clock B
30
X
Serial Clock Receive B (SCR B)
Data Terminal Ready
37
E
Data Set Ready (DSR)
Unassigned
13
F
Receive Less Signal Detector (RLS D)
Request to Send
12
D
Clear to Send (CTS)
Ground
43
B
Signal Ground (S GND)
Clear to Send A
9
C
Request to Send (RTS)
Data Set Ready A
10
H
Data Terminal Ready (DTR)
Carrier Detect A
11
BB
Unassigned
Cable Present Status
14
Ground
39
External Select B (EXT SEL B)
2
Ground
27
V.35 G1
23
Ground
48
V.35 G2
24
Ground
49
V.35 G3
25
Ground
50