Johnson Systems EDI-120 Control Retrofit - Manual (Page 11)

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INPUT/OUTPUT
CONTACTS
0-10VDC
ANALOG INPUTS
+12 VDC
POWER SUPPLY
2 AMPS MAXIMUM
COMMON OVER
TEMP
INPUT
(N.O)
FIRE
ALARM (N.O)
SECURITY
ALARM (N.O)
AUXILIAR
Y INPUT
(N.O)
OPEN COLLECT
OR OUTPUT
COMMON + 12 VDC ANALOG INPUT
1
ANALOG INPUT
2
ANALOG INPUT
3
ANALOG INPUT
4
COMMON COMMON COMMON + 12 VDC + 12 VDC + 12 VDC
DMX-A AND DMX-B
INPUT AND THRU
DAISY-CHAIN MULTI-
RACK INSTALLATIONS
ISOLATED DUAL DMX INPUT AND THRU
SHIELD / COMMON DATA
-
DATA
+
SHIELD / COMMON DATA
-
DATA
+
SHIELD / COMMON DATA
-
DATA
+
SHIELD / COMMON DATA
-
DATA
+
DMX-A
INPUT
DMX-A
THRU
DMX-B
INPUT
DMX-B
THRU
Control Input/Output Connections
All EDI-120 retrofit control systems come with a variety of control input and output (I/O)
capabilities. All I/O connections are terminated on the connectors located at the rear of
the EDI-120 chassis.
Breakaway type connectors are provided for all I/O connections.
• Use wire size #28 to #12 AWG.
• Strip wire insulation length to 0.28” (7mm).
• Use a 1/8” (3.2mm) flat head screwdriver to tighten connections.
• Torque connections to 3.5 IN-LBS (0.4 NM).
NOTE: For connection use copper wire only, rated for 167°F (75°C) minimum.
Isolated Dual DMX Input and Thru
• DMX-A (SHIELD/COMMON, DATA-, DATA+) input and thru is terminated on the two 3-position breakaway
connectors provided.
• DMX-B (SHIELD/COMMON, DATA-, DATA+) input and thru is terminated on the two 3-position breakaway
connectors provided.
• For multi-rack EDI-120 installations, a 10’ (3m) 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 plugs into the RJ45 connectors
located at the rear of the EDI-120 chassis.
• 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: http://old.usitt.org/DMX512FAQ.aspx
NOTE: Ensure only the last (end-of-line) DMX receiving device is terminated! Refer to
menu items “DMXA TRM” and “DMXB TRM” on page 21 for further details.