Control input/output connections – Johnson Systems CD-3000 Series Retrofit Control System User Manual
Page 13
13
+12V
+12V
Common
Analog
Input
1 Thru 4
Common
+12V
Analog
Input
1 Thru 4
Maintained
Normally
Open
Switch
Contact
Control Input/Output Connections
All CD-3000 systems come with a variety of control input and output (I/O)
capabilities. All I/O connections are terminated on the Backplane.
Breakaway type connectors are supplied for all I/O connections.
• Use wire size #28 to #12 AWG. Strip insulation length to 0.3” (7.5mm).
• Torque terminations to 3.6 IN-LBS (0.4 NM).
NOTE: For connection use copper wire only, rated for 167°F (75°C)
minimum.
Dual DMX Input and Thru
• DMX A (SHIELD/COMMON, DATA-, DATA+) is terminated on the J9 and
J10 connectors.
• DMX B (SHIELD/COMMON, DATA-, DATA+) is terminated on the J11
and J12 connectors.
• For multi-rack CD-3000 installations, a 10 foot (3 meter) CAT 5e patch
cable is supplied. This cable is used to daisy-chain the DMX A and DMX
B between systems. The CAT 5e patch cable terminates to J13 and J14
connectors.
• Complies with USITT DMX512-A (ANSI E1.11 - 2008), standard protocol
for digital data control.
• Recommended cable is Belden 9829, 9842, Cat 5 or equivalent
(low-capacitance, twisted pair).
• Wiring must follow a daisy-chain topology.
• Maximum of 32 receiving devices on a single DMX line.
• Maximum cable length is 1,500 feet (455 meters).
• For more information, Google DMX, or visit:
NOTE: Ensure only the last (end-of-line) DMX receiving device is terminated!
+12VDC Power Supply Output
• A regulated +12VDC power supply is available for powering
external devices.
• Terminate on +12V and COMMON of J16 connector.
• External devices should not exceed the maximum combined
current draw of 2 Amps.
0-10VDC Analog Inputs or Load Shed Contact Inputs
• Four (4) analog inputs terminate on J17 connector.
• Inputs can be configured for normal or load shed mode of operation.
• Inputs can be patched to any combination of dimmer output circuits.
• Programmed in the “ANA MODE” and “ANA PAT” menus.
See page 26 for details.