
IPL EXP I/O Series • Hardware Features and Installation
17
Bidirectional Control and Communication Connections and Features
3-pole COM ports, RS-232 only
All models except the IPL EXP RIO8 include COM ports, which can be used 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.
IPL EXP I/O 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 parity, or odd parity
•
Flow control support (default = none),
software-only (XON, XOFF)
Use the following diagram as a wiring guide to cable
the EXP to other devices.
Tx Rx G
COM
Tx Rx G
1
2
Tx Rx G
COM 2
Tx Rx G
COM 1
NOTE:
If you use cable that has a drain wire, tie the drain wire to ground at both ends.
RS-232-
Controllable
Device
Transmit
Receive
Receive (Rx)
Transmit (Tx)
Ground
Rx
G
Tx
Strip wires
3/16" (5 mm) max.
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 3-pole COM ports support
software flow control only.
Serial (COM) Ports
Rear Panels
Heat Shrink
To 3-pole
COM port
Heat Shrink
Over Shield Wires
or
Figure 7.
Wiring COM Ports for Serial Control
For bidirectional serial communication, the transmit, ground, and receive pins must be
wired at both the IPL EXP 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 EXP and the device being controlled are
generally up to 200 feet (61 m) but can vary based on factors such as cable gauge,
baud rates, environment, and output levels from the EXP and the device being
controlled.
3/16"
(5 mm)
Max.
7/8"
(22 mm)
Heat Shrink
on Outer
Jacket to
Inner
Conductor
Transition
Extron
STP 20-2P Cable
TIP:
STP 20-2P
cable, shown
at left, is
recommended
for these
connections.
For best
results,
insulate the
common or
drain wires
using heat
shrink.
Содержание IP Link IPL EXP 200
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