Extron Electronics IPCP 505 User Guide - Manual (Page 21)

IPCP 505 • Hardware Features and Installation 15
h
Relay ports — Eight relay ports provide control for power, screen/projector lifts,
window coverings, and similar items, when trigger events occur.
FLEX I/O
1 2 3 4 G
S SE SERIA L RELAY
3
S S G S G
4 4
7
S G S G G
8 5 6
1 2 3 4
7 8
RELAY
FLEX
I/O
5
1
6
2
3
1
4
2
7
3
8
4
IR/S
5
1
6
2
7
3
8
4
Rear Panel Front Panel
Relays
• Connect devices for contact control.
• Do not exceed a total of 24 V at 1 A for each port.
Relay LEDs
Light when the corresponding
relays are activated (tied to GND)
1 2
To Room
Control
Equipment
Closed
Normally
Open
Figure 11. Wiring the Relay Ports
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 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 Global
Configurator software or SIS commands to change the length of the timeout period.
See the
X6# variable on page 56 and the corresponding relay port commands on
page 61 in the “SIS Programming and Control” section for details.
Additional Control Ports
i
Flex I/O ports —To allow the IPCP 505 to monitor 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 power LEDs, incandescent lights, or other devices that accept a
TTL signal, or to provide contact closure control for projector lifts, motorized screens,