The DSE857 communications device allows monitoring of a single DSE controller with USB connectivity by converting it to an RS485 connection. To achieve this the DSE857 connects to an RS485 MODBUS RTU master over 1.2km away. The MODBUS RTU master can be an external PLC, Building Management System (BMS) or a Windows PC running the DSE Configuration Suite Software.

Works with:

Auto Start:

DSEL401MKII/DSE4310/DSE4410/DSE4510/DSE4610/DSE6010MKII/

DSE6110/DSE6610/DSE7110 MKII/DSE7210/DSE7310

Auto Mains (Utility) Failure:

DSE4320/DSE4420/DSE4520/DSE4620/DSE6020/DSE6120MKII/

DSE6620/DSE7120MKII/DSE7220/DSE7320

OVERALL SIZE

35 mm x 97 mm x 102 mm (1.4” x 3.8” x 4.0”)

WEIGHT

0.16kg

Key Features and Benefits:

• Converts a USB port to an RS485 port.
• Remote control & monitoring for all connected modules.
• Access permission settings.
• Supports MODBUS RTU using the RS485 port.
• Full building management system integration.
• Firmware upgradeable.
• DIN rail mount.

DC SUPPLY

CONTINUOUS VOLTAGE RATING

8 V to 35 V Continuous

CRANKING DROPOUTS

Able to survive 0 V for 100 mS, providing supply was at least 10 V before dropout and supply recovers to 5 V. This is achieved without the need for internal batteries. LEDs and backlight will not be maintained during cranking.

MAXIMUM OPERATING CURRENT

123 mA at 12 V

71 mA at 24 V

MAXIMUM STANDBY CURRENT

104 mA at 12 V

63 mA at 24 V

COMMUNICATIONS

USB (Single DSE Controller)

RS485

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