Nortel Networks Passport 4400 - Manual (Page 125)

Cable Diagram Pin Assignments Passport 4400 Hardware Installation Manual
A-9
Figure A-6. Cable Model No. NTAU18AA - 4400 to DCE Equipment
Clear to Send 9 5 Clear to Send (CTS)
Data Set Ready 10 6 Data Set Ready (DSR)
Carrier Detect 11 8 Carrier Detect (CD)
Request to Send 12 4 Request to Send (RTS)
Unassigned 13 11 Unassigned (UN A)
Data Terminal Ready 37 20 Data Terminal Ready (DTR)
External Transmit Data Clock 232 40 24 Serial Clock Transmit External (SCTE)
Transmit Data 232 16 2 Transmit Data (D)
Receive Data 232 41 3 Receive Data (RD)
Transmit Data Clock 232 17 15 Serial Clock Transmit (SCT)
Receive Data Clock 232 42 17 Serial Clock Receive (SCR)
Ground 43 7 Signal Ground (SG)
Cable Present Status 14 25 Unassigned (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 (F GND)
25-Pin RS-232
Male
MD50
Male
To Data
Communication
Equipment (DCE)
To 4400
Data Terminal
Equipment (DTE)