Quest Controls Inc.

    Digital Output Board

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Digital Output Board

Monitoring, Control & Test Solutions for Telecom


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Product Information
The Digital Output Board (DOBv2), 24VAC/20-60VDC-Eight (8) channel digital output board each consisting of a 10A @ 120VAC Form C relay, on-board on/off/auto bypass, and Isolated M-Bus w/heartbeat. Up to six (6) can be networked to the ESB.

The Digital Output Board provides eight (8) Form “C” relays rated at 10 amps. The relays are energized and de-energized in response to commands sent to the DOB from the TELSEC® ESB and Q3™. A bypass LED, status LED, and bypass switch are associated with each relay. The bypass switch allows manual override of controller commands.

The Digital Output Board microprocessor controls communications with the controller, the bypass switching, the indicators and relays. A TELSEC® ESB and Q3™ will accommodate up to six (6) Digital Output Boards. The Digital Output Board is equipped with easy to wire pull apart terminal strips and can be mounted in 3 inch snaptrack.

Part Number – 130454
Capacities – Eight (8) Form “C” single pole double throw relay outputs, common, normally open and normally closed. Rated: @ 10A, 120 VAC – 8.5A, 28 VDC

Indicators and Controls
Eight (8) relay output state indicators
Eight (8)LED for bypass indicators
BUS XMIT – Indicates the board is sending data over the BUS
BUS RECV – Indicates the board is receiving data from the BUS
+5 – Indicates +5 volts DC is present
Switches – One 8 position dip switch for bus address and board configuration
Termination – Two-piece pluggable terminal strips. Rated @ 250 VAC 15 amp. Terminals provided for M-BUS and power inputs.
Environmental – Operating Temp 32 to 120°F (0 to 49°C) 0-95% RH Non-condensing
Electrical – 48VDC max. load @ 0.100 amp, 24VDC max. load @ 0.200 amp, 24VAC max. load @ 0.300 amp
Size – 3.25 H x 10 W x 1.3 D in. (83 x 25 x 33 mm)
Weight – 1 lb (454 g)
Warranty – 1 Year

Optional Enclosures
Multiple Board Enclosure – Wall mounted with locking door; knockouts on all sides for electrical connections. Part Numbers 150774 and 150775 (requires external power supply)
Up to three boards per enclosure mounted in snaptrack
Dimensions – Enclosure 22 H x 15.25 W x 3.5 D in. (559 x 387 x 89 mm)
Weight – 20 lb (9 kg)
Single Board Expansion Enclosure – Part number 150860
Dimensions – 6 H x 15 W x 3.5 D in. (152 x 383 x 89 mm)
Weight – 4 lb (1.8 kg)

Specifications subject to change without notice.