DSE857

USB to RS485 Communications Device

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/DSE6010 MKII/DSE6110/DSE6610/DSE7110 MKII/DSE7210/DSE7310

Auto Mains (Utility) Failure:
DSE4320/DSE4420/DSE4520/DSE4620/DSE6020/DSE6120 MKII/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

Description

Product Highlights

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.


Specification

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