Installation guide

Crestron MPC-M5 Media Presentation Controller™ M5
Operations & Installation Guide – DOC. 6955B Media Presentation Controller™ M5: MPC-M5  9
Connectors, Controls & Indicators (Continued)
#
CONNECTORS,
CONTROLS &
INDICATORS
DESCRIPTION
10
RELAYS 1-2
(4) Captive screw terminals comprising (2)
normally open, isolated relays
Rated 1 Amp, 30 Volts AC/DC
MOV arc suppression across contacts
PIN
DESCRIPTION
1
1
2
Common
3
2
4
Common
11
I/O
(4) Captive screw terminals comprising (2)
contact closure or voltage sensing inputs
(referenced to ground) with 24 Volt DC
power output
Input voltage range: 0-26 Volts DC
Logic threshold: ≥2.8 Volts DC active/high,
≤1.8 Volts DC inactive/low
Input impedance: 10 kΩ @ >5 Volts
1 MΩ @ <5 Volts
Pull-up resistor: 2.2 kΩ per input
Pull-down resistor: 2.5 kΩ per input,
programmable
Power output: 2 Watts @ 24 Volts DC,
provides operating power for two Crestron
GLS Series occupancy sensors
3
PIN
DESCRIPTION
1
24
2
Ground
3
1
4
2
1. To determine which is pin 1 on the cable, hold the cable so the end of the eight pin modular jack is
facing away from you, with the clip down and copper side up. Pin 1 is on the far left.
2. The pin out table indicates signal connections. DC power applied by Ethernet power sourcing
equipment (PSE) can connect to either signal pins or N/C pins.
3. The combined rating of both occupancy sensors should not exceed 80 milliamps.