Rockwell Automation 1761-NET-AIC Advanced Interface Converter (AIC+) User Manual - Manual (Page 38)

Publication 1761-UM004B-EN-P - June 2006
34 Specifications and Dimensions
Isolation Between All Ports and Power Supply Terminals
Hardware Handshaking
To implement hardware handshaking, use cables that support the
following signals.
Signals Needed for Hardware Handshaking
When hardware handshaking is used, the auto transmit delay
(turnaround time) is zero.
Protocol for Hardware Handshaking
Signal Definition Function
RTS active An input to AIC+ interface converter port.
CTS active An output from AIC+ interface converter
port.
Protocol AIC+ Interface Converter Support of
Hardware Handshaking
DF1 Full-duplex (point-to-point isolator)
Yes (1)
(1) You can connect two DF1 Full-duplex devices together with one AIC+ interface converter.
DF1 Master-slave Yes
(2)
(2) Any communication coming off of the RS-485 line will not drive the carrier detect lines on the RS-232 (DB-9,
DTE) communication port and the RS-232 (8-pin mini-DIN) communication port. If the devices require carrier
detect high, it must be jumpered high locally at the device’s RS-232 port. Devices on RS-232 (DB-9, DTE)
communication port and RS-232 (8-pin mini-DIN) communication port can drive the other RS-232 ports
handshaking lines and the RS-485 transmitter.
User-mode ASCII
Yes
(2)
RS-485 Communication
Port (Phoenix Plug)
RS-232 (DB-9, DTE)
Communication Port
RS-232 (8-pin mini-DIN)
Communication Port
Terminals for external 24V dc power
supply and chassis ground.