Additional Control Ports - Extron electronics IPCP 505 User Manual

Additional Control Ports

Flex I/O ports (see
I
devices to trigger events, connect switches, sensors, LEDs, relays, or similar items
to these four ports, which can be configured as analog inputs, or as digital inputs or
outputs, with or without +5 VDC pull-up. These ports can trigger events or functions
(such as triggering relays, issuing commands, or sending an e-mail) that have been
configured using Global Configurator (GC) software.
Analog input — When a flex I/O port is configured as an analog input, the port can
measure 0 to 25.3 VDC with 12-bit accuracy. A DC level is indicated by a count from
0-4096 (≈ 6 mV per count).
Digital input — To allow the IPCP to monitor external devices that do not use RS-232
communication, connect a switch, motion sensor, moisture sensor, tally feedback
output, button pad, or a similar item to a flex I/O port and configure it for digital input.
When configured as a digital input, the port is set to measure two states: high and low.
The port accepts 0 to 12 VDC input. The threshold voltages are as follows: a voltage
below 2.0 VDC is measured as logic low, and a voltage above 2.8 VDC is measured as
logic high. There is also an internal, +5 VDC, selectable, pull-up resistor for this circuit.
Digital output — To activate LEDs, incandescent lights, or other devices that accept
a TTL signal, or to provide contact closure control for projector lifts, motorized screens,
room or light switches via an Extron IPA T RLY4, you can use one or more of these
ports as a digital output.
When a port is configured for digital output, it offers two output states: on and off.
•
•
If the application calls for TTL compatibility, the digital output circuit can be set up to
provide a 2k ohm pull-up resistor to +5 VDC.
Rear Panel
3 4
LAN
EL L A L A Y A A A Y Y Y Y Y Y Y
7 8 FLEX I/O
1 2 3 4 G
Heat
Shrink
Over
Shield
Wires
G
4
3
2
1
Figure 13.
figure 7
When the port is set to an "on" state, (the circuit is closed), the I/O pin is connected
to ground. Each I/O port is capable of accepting 250 mA, maximum.
When the port is set to the "off" state (the circuit is open), the output pin is not
connected.
Flex I/O (digital input/output or analog input)
Con gure each port as an analog input or as a digital input or
output, with or without +5 VDC pull-up.
Use these ports to:
• Monitor or trigger events and functions (toggle relays, issue
commands, send e-mail), once con gured.
• Power LEDs, incandescent lights, or other devices that accept
a TTL signal.
Ground
Wire
Nut
Device 4
Switch,
Device 3
Sensor
Device 2
Device 1
Flex I/O Port Wiring Examples
on page 12) —To allow the IPCP 505 to monitor
Share the same ground among
I/O connections.
(Switches, sensors,
LEDs, relays, or
similar items)
IPCP 505 • Hardware Features and Installation
Front Panel
FLEX
RELAY
I/O
1 2 3 4 1 2
5 6 7 8 3 4
Flex I/O LEDs
Light when the corresponding
ports are active
17