Extron Electronics IPCP Pro Series User Guide - Manual (Page 21)

IPCP Pro Series • Hardware Features and Installation 15
Bidirectional Control and Communication Connections and Features
D 3-pole COM ports, RS-232 only and
E 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.
G Tx Rx
COM 2
Y Y Y RELAY
2 2 1 C
Tx Rx G Tx Rx G RTS
Tx Rx G Tx Rx G RTSCTS
CTS
COM 1
G Tx Rx RTSCTS
I IR/SE R RIAL
1
S S G G
2
S G
1 7
8 4 Tx
Rx
Tx
Rx
RTS
CTS
COM
1 2 3 4 5 6 7 8
COM
2 3 1
Rx
CTS
RTS
Tx
NOTE: If you use cable that has a drain wire, tie the drain wire to ground at both ends.
Strip wires 3/16"
(5 mm) max.
Transmit (Tx)
Receive (Rx)
Transmit
Receive Transmit (Tx)
Receive (Rx)
Ground
Projector, Panel
Display, PC, or Other
RS-232, RS-422, or
RS-485 Device
RS-232-
Controllable
Device
Request to send
Clear to send
Transmit
Rx Receive
Tx
CTS
RTS
G Ground
Rx
G
Tx
COM
Front Panels
5-pole COM
(RS-232, RS-422, RS-485)
3-pole COM
(RS-232)
Select protocol via software.
COM port default protocol:
• 9600 baud
• 8 data bits • 1 stop bit
• no parity • no flow control
NOTE: The 5-pole COM ports support both
hardware and software flow control.
The 3-pole COM ports support software
flow control only.
Serial (COM) Ports
Heat Shrink Heat Shrink
Over Shield Wires
To 3-pole
COM port
To 5-pole
COM port
RTS = Request to Send
CTS = Clear to Send
Tx = Transmitting Data
Rx = Receiving Data
Rear Panels
or or
RS-232
Tx
Rx
Ground
RTS
CTS
RS-422
Tx-
Rx-
Ground
Tx+
Rx+
RS-485
Ground
5-pole COM Pin Configurations
Data-
(pins 1 & 2
tied together)
Data+
(pins 4 & 5
tied together)
Pin
1 (Tx)
2 (Rx)
3 (G)
4 (RTS)
5 (CTS)
Figure 10. 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
may vary up to 200 feet (61 m). Factors such as cable gauge, baud rates,
environment, and output levels (from the IPCP and the device being controlled) all
affect transmission distance. Distances of about 50 feet (15 m) are typically not a
problem. In some cases the IPCP may be capable of transmitting and controlling
a given device via RS-232 up to 250 feet (76 m) away, but the RS-232 response
levels of that device may be too low for the IPCP to detect.
3/16"
(5 mm)
Max.
7/8 "
(22 mm)
Heat
Shrink
on Outer
Jacket to
Inner
Conductor
Transition
Extron
Comm-Link Cable
TIP:
Comm-Link (CTL
and CTLP) cable,
shown at left, is
recommended
for these
connections. For
best results and
to avoid short
circuits, use
shielded wires
or wires insulat-
ed using heat
shrink (instead
of bare wires) for
the common/
drain wires.
PRELIMINARY