2-9
IPL 250 • Hardware Features and Installation
(+)
(+)
(+)
(+)
(+)
(-)
(-)
(-)
(-)
(-)
(+)
(+)
(-)
(-)
(+)
(-)
(+)
(-)
IR Signal
IR Signal
IR Signal
IR Signal
Ground
Single and Dual IR Emitter Two Single IR Emitters
Dual IR EmittersTwo Single and 0ne Dual IR Emitter
Ground
Ground
Ground
(+)
(+)
(-)
(-)
(+)
(-)
(+)
(–)
Black wire
w/white stripe
Black wire
Legend
Wiring emitters for IR control
f Relay ports — Four relay ports provide control for power, screen/projector
lifts, window coverings, and similar items, when trigger events occur.
These relay contacts may be used to control any
equipment as long as the contact specifications
of a total of 24 volts at 1 ampere are not exceeded
for each port. These relays are normally open by
default.
When activated, the closed contacts open, and
the open contacts close. They can be set up to
operate in one of two ways:
• latching (brief contact) (press to turn on, press
to turn off), or
• momentary (timed) (press to turn on, timeout
to turn off).
In the timed mode the default timeout period is
½ second (500 ms). Use the GC software or SIS
commands to change the length of the timeout
period. See X6# in “Serial Communication”,
chapter 4, for details.
g Input (contact closure input) ports —
To allow the IPL 250 to monitor devices to
trigger events, connect a switch, sensor, or
similar item to one of these four ports. See the
figure at right for an example.
A 1k ohm pull-up resistor in a TTL (5 VDC)
circuit senses external switch or contact
closure. After these ports have been
configured, when the circuit between a signal
pin and a ground pin is closed, each port can
trigger events (such as toggling relays, issuing
commands, or sending an e-mail).
h MAC address — This is the unique user
hardware ID number (MAC address) of the
unit (for example, 00-05-A6-00-00-01). You
may need this address during configuration.
RELAY
12
ClosedNormally
open
IPL 250
Rear Panel
To Room
Control
Equipment
INPUT
1234
IPL 250
Rear Panel
Switch,
Sensor
2
1
3
4
Heat Shrink
Over Shield