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Cable Diagram Pin AssignmentsPassport 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)