Bidirectional Control And Communication Connections And Features - Extron electronics IPCP Pro 250 User Manual

Bidirectional Control and Communication Connections and Features

D
E
Rear Panels
COM 2 COM 1
1
T x Rx G
Tx Rx G Tx Rx
or
RELAY Y Y Y I I R/SER
1 2 2 C 4 1
T x Rx G
S S G G
To 5-pole
COM port
Heat Shrink
Over Shield Wires
To 3-pole
COM port
NOTE: If you use cable that has a drain wire, tie the drain wire to ground at both ends.
3-pole COM ports, RS-232 only and
5-pole COM ports, RS-232/RS-422/RS-485 —
Use COM ports for serial control of a display or other device and to receive status
messages from the connected devices. These ports can send
commands from a driver file. RS-232 is the default serial mode
for the 5-pole ports and the only mode for the
3-pole ports.
IPCP Pro Series serial protocol:
300 to 115200 baud (9600 baud = default)
•
8 (default) or 7 data bits
•
1 (default) or 2 stop bits
•
No parity (default), even, odd, mark, or space
•
parity
Flow control support (default = none):
•
3-pole ports: software-only (XON, XOFF)
•
5-pole ports: hardware and software
•
Use the following diagram as a wiring guide to cable the IPCP to other devices.
7
3-pole COM
(RS-232)
T x R x G RTS CTS
G RTSCTS
or
5-pole COM
R IAL
2 8
(RS-232, RS-422, RS-485)
NOTE: The 5-pole COM ports support both
T x R x G RTSCTS
S G
hardware and software ow control.
The 3-pole COM ports support software
ow control only.
CTS Clear to send
RTS Request to send
G Ground
Rx Receive
Tx Transmit
Heat Shrink
G Ground
Rx
Receive
Tx Transmit
Figure 11. Wiring COM ports for Serial Control
For bidirectional serial communication, the transmit, ground, and receive pins must be
wired at both the IPCP Pro Series and the other device. Each projector or other device
may require different wiring. For details, see the manual for that equipment or read the
Extron device driver communication sheet, which is included with the drivers.
NOTE: Maximum distances between the IPCP and the device being controlled are
generally up to 200 feet (61 m) but may vary based on factors such as cable
gauge, baud rates, environment, and output levels (from the IPCP and the device
being controlled).
Serial (COM) Ports
Select protocol via software.
COM port default protocol:
• 9600 baud
• 8 data bits • 1 stop bit
• no parity • no ow control
Projector, Panel
Display, PC, or Other
RS-232, RS-422, or
Transmit (Tx)
RS-485 Device
Receive (Rx)
RS-232-
Transmit (Tx)
Controllable
Receive (Rx)
Device
Strip wires 3/16"
(5 mm) max.
IPCP Pro Series • Hardware Features and Installation
TIP: Comm-Link
(CTL and CTLP)
cable, shown
at left, is
3/16"
(5 mm)
recommended
Max.
7/8 "
for these
(22 mm)
connections. For
best results and
Heat
to avoid short
Shrink
on Outer
circuits, use
Jacket to
shielded wires or
Inner
Conductor
wires insulated
Transition
using heat
shrink (instead
of bare wires) for
the common/
Extron
drain wires.
Comm-Link Cable
Front Panels
COM
Tx
Rx
1 2 3 4 5 6
RTS = Request to Send
CTS = Clear to Send
Tx = Transmitting Data
Rx = Receiving Data
RTS
CTS
Tx
Rx
5-pole COM Pin Configurations
Pin RS-232 RS-422
1 (Tx) Tx Tx-
(pins 1 & 2
2 (Rx) Rx Rx-
tied together)
3 (G) Ground Ground
4 (RTS) RTS Tx+
5 (CTS)
CTS Rx+
tied together)
RTS
CTS
Tx
Rx
7 8
COM COM
1 2 3
RS-485
Data-
Ground
Data+
(pins 4 & 5
15