Johnson Controls MS-IOU4710-0U Installation Instructions Manual page 13

Table 2: IOU47 Terminal Blocks, Functions, Ratings, Requirements, and Cables
Terminal Block Terminal
Label Label
ANALOG OUTn
(Outputs)
OCOMn
BINARY OUTn
(Output)
Power Selection
Jumper positioned to
External (EXT) power.
OCOMn
BINARY OUTn
(Output)
OCOMn
Power Selection
Jumper positioned to
Internal (INT) power.
IOU4710 Input/Output Module Installation Instructions
Function, Ratings, Requirements
Analog Output - Voltage Mode (0–10 VDC)
10 VDC maximum output voltage
10 mA maximum output current
Required an external load of 1,000 ohm or more.
Note: The Analog Output (AO) operates in the Voltage
Mode when connected to devices with impedances greater
than 1,000 ohm. Devices that drop below 1,000 ohm may
not operate as intended for Voltage Mode applications.
Analog Output - Current Mode (4–20 mA)
Requires and external load between 0 and 300 ohm.
Note: The Analog Output (AO) operates in the Current
Mode when connected to devices with impedances less
than 300 ohm. Devices that exceed below 300 ohm may
not operate as intended for Current Mode applications.
Analog Output Signal Common for all Analog OUT
terminals.
Note: All Analog Output Common terminals (OCOMn) share
a common, which is isolated from all other commons.
Binary Output - 24 VAC Triac (External Power Source)
Connects OUTn to OCOMn when activated.
External Power Source Requirements:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
Binary Output Common (for OUTn terminal)
Note: Each Binary Output Common terminal (OCOMn) is
isolated from all other commons, including other Binary
Output Common terminals.
Binary Output - 24 VAC Triac (Internal Power Source)
Sources internal 24 VAC power (24~ HOT).
Binary Output - 24 VAC Triac (Internal Power Source)
Connects OCOMn to 24~ when activated.
Internal Power Source:
30 VAC maximum output voltage
0.5 A maximum output current
1.3 A at 25% duty cycle
40 mA minimum load current
Determine Wire Size and
Maximum Cable Length
See Guideline C in Table 3.
See Guideline C in Table 3.
See Guideline C in Table 3.
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