Overview
The TU840 is a Module Termination Unit (MTU) designed for redundant configurations with the Optical ModuleBus Modem TB840/TB840A. This MTU is a passive device that provides connections for the power supply, dual electrical ModuleBus, and two TB840/TB840A modems. Additionally, it features a rotary switch for setting the cluster address, which can be adjusted from 1 to 7.Specifications
- Communication Protocol: Modulebus
- Master or Slave: N/A
- Line Redundancy: Yes
- Module Redundancy: Yes
- Hot Swap: No
- Type: Redundant TB840/TB840A, Redundant I/O, Single Power
- Power Input: 24 V d.c (19.2 - 30 V)
- Mounting: Vertical or Horizontal
- Connector: N/A
- 24 V Consumption (typical): N/A
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ModuleBus Current Distribution:
- Maximum 5 V: 1.5 A
- 24 V: 1.5 A
- Mechanical Keys: 36 different combinations
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Acceptable Wire Sizes:
- Solid: 0.2 - 2.5 mm²
- Stranded: 0.2 - 2.5 mm², 24 - 12 AWG
- Recommended Torque: 0.5 Nm
- Rated Insulation Voltage: 50 V
- Dielectric Test Voltage: 500 V a.c
- Power Dissipation: 2.0 W
- CE Marking: Yes
-
Electrical Safety:
- EN 61010-1
- UL 61010-1
- EN 61010-2-201
- UL 61010-2-201
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Hazardous Location:
- cULus Hazardous Location Class 1 Zone 2
- ATEX Zone 2
-
Marine Certificates:
- ABS
- BV
- DNV-GL
- LR
- Operating Temperature: 0 to +55 °C (+32 to +131 °F), approvals are issued for +5 to +55 °C
- Storage Temperature: -40 to +70 °C (-40 to +158 °F)
- Relative Humidity: 5 to 95 %, non-condensing
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Max Ambient Temperature:
- 55 °C (131 °F), for vertical mounting
- 40 °C (104 °F)
- Equipment Class: Class I according to IEC 60536; (earth protected)
- Ingress Protection: IP20 according to IEC 60529
- RoHS Compliance: DIRECTIVE/2011/65/EU (EN 50581:2012)
- WEEE Compliance: DIRECTIVE/2012/19/EU
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Dimensions:
- Width: 124 mm (4.88 in.)
- Height: 186 mm (7.32 in.) including latch
- Depth: 47 mm (1.85 in.)
- Weight: 0.45 kg (0.99 lbs.)
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