C-22
Preliminary November 4, 1998
MAX 4000 Series Hardware Installation Guide
Cables and Connectors
Serial host interface specifications
ST-
Send Timing -
RT+
Receive
RT-
Receive Timing -
TT+
Terminal
TT-
Terminal Timing -
DSR
Data Set Ready
DCD (CD)
Data Carrier Detect
RTS
Request to Send
RI
Ring Indicate
DTR
Data Terminal Ready
DPR
RS-366 Call Digit or Tone
ACR
Abandon Call/Retry
CRQ
Call Request
PND
Present Next Digit
DLO
Data Line Occupied
NB1
RS-366 Call Digit or Tone
NB2
RS-366 Call Digit or Tone
NB4
RS-366 Call Digit or Tone
NB8
RS-366 Call Digit or Tone
RX/SEL
Select Interface Jumper (not a
signal to or from host)
Table C-19. Serial host interface cabling abbreviations (continued)
Abbreviation
Explanation