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Cable Diagrams Passport 4400 Hardware Installation Manual
A-7
Figure A-5. Cable NTAU26AA - Passport 4430, 4450, 4455 to DCE Equipment
NC NC
15-Pin
X.21 Mal
50-Pin Male
To Data Communication
Equipment (DCE)
20 4
45 11
83
33 10
62Transmit Data A
31 9 Transmit Data B
21 6 Signaling A
46 13 Signaling B
22 5 Internal Clocking A
47 12 Internal Clocking B
43 8 Ground
1
26
2
27
14
39 1
To Passport Data Terminal
Equipment (DTE)
Receive Data A
Receive Data B
External Transmit Clock A
External Transmit Clock B
Transmit Data A
Transmit Data B
Transmit Clock A
Transmit Clock B
Receive Clock A
Receive Clock B
Ground
Cable Type A
Ground
Cable Type B
Ground
Cable Present Status
Ground
Frame Ground
Receive Data A
Receive Data B
Clocking A
Clocking B