C-22 Preliminary November 4, 1998 MAX 4000 Series Hardware Installation Guide
Cables and Connectors
Serial host interface specifications
ST- Send Timing -
RT+ Receive Timing +
RT- Receive Timing -
TT+ Terminal Timing +
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
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