Extron Electronics IPL 250 Reference Manual - Manual (Page 22)

Hardware Features and Installation, cont’d
IPL 250 • Hardware Features and Installation 2-8
For bidirectional RS-232 communication, the transmit, ground, and receive
pins must be wired at both the IPL 250 and the other device. Each projector
or other device may require different wiring. For details, refer to that
equipment’s manual or to the Extron device driver communication sheet.
N Maximum distances between the IPL 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 IPL 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 IPL 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 IPL to detect.
Extron Comm-Link (CTL and CTLP) cable is
recommended for these connections. Before
inserting wires in the connectors, strip the cable and
apply heat shrink as shown at right.
T For best results and to avoid short circuits, Extron
recommends using shielded wires or wires insulated
using heat shrink (instead of bare wires) for the
common/drain wires.
Unidirectional control and communication connections
e
IR output ports — An IPL 250 can use infrared signals to control up to 16
devices. You can connect one of these ports directly to the wired IR port of
another device. Or you can insert the wires from up to four IR Emitters in
an IR port and place the emitters’ heads over or next to the devices’ IR signal
pickup windows. The figure below shows some wiring examples.
IR
1
S G S G
2
(+)
(-)
(+)
(+)
(-)
(-)
IPL 250
Rear Panel
Two Single IR Emitters
To Projector,
Panel Display,
or Source
Device’s Wired
IR Remote Port
Ground ( )
IR Output Signal
Unidirectional IR
IR Output
Ground ( )
Strip wires
3/16”
(5 mm)
max.
Wiring the IR ports
N Each emitter must be within 100’ of the IPL for best control results.
• If using all single emitters or all double emitters, wire the emitters in
parallel.
• If using a mix of both single and dual emitters, see the following figure
and the IR Emitter Installation Guide, part number 68-808-01.
3/16”
(5 mm) Max.
7/8”
(22 mm)
Heat Shrink on
Outer Jacket to
Inner Conductor
Transition
Extron
Comm-Link Cable