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Cable Diagram Pin AssignmentsPassport 4400 Hardware Installation Manual
A-12
Figure A-9. Cable Model No. NTAU23AA - 4400 to DTE
NC NC
Receive Data A 20 4
Receive Data B 45 22
Receive Clock A 22 17
Receive Clock B 47 35
External Transmit Data Clock A 8 8
External Transmit Data Clock B 33 26
Transmit Data A 6 6
Transmit Data B 31 24
External Receive Data Clock A 7 5
External Receive Data Clock B 32 23
Clear to Send A 9 7
Clear to Send B 34 25
Data Set Ready A 10 12
Data Set Ready B 35 30
Carrier Detect A 11 16
Carrier Detect B 36 34
Request to Send 12 9
Ground 48 27
Unassigned 13 13
Ground 49 29
Data Terminal Ready 37 11
Ground 50 31
DTE COM 18 20
Ground 43 19
DCE COM 19 37
External Select A 1
Ground 26
Cable In 14
Ground 39
37-Pin
V.36 Female
To 4400
To Data
Terminal
Equipment (DTE)
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.