485DSS

485DSS Datasheet

485DSS-0812ds-1/2

Part	Datasheet
485DSS	485DSS (pdf)

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485DSS-0812ds-1/2 2008 by B&B Electronics. All rights reserved. Model 485DSS Distributed Smart Switch B&B ELECTRONICS Features 9 Network Enable “dumb” RS-232 Devices 9 Network 32 RS-232 Devices up to 4,000 feet 9 Supports RS-422 and RS-485 Functional Description The 485DSS allows non-addressable, “dumb” RS-232 devices to be connected on an addressable RS-485 network. The master node controls all communications to connected devices. By distributing the switching intelligence along the RS-485 network, wiring cost savings are substantial compared to a single switched “star” configuration. Devices can either be polled by the master node or request access to the bus through the RS-232 handshake line. This provides a versatile system for interconnecting devices that are designed for point-to-point communications. Because the units communicate using standard RS-485 signals, RS-232 devices can form their own network or be added to and existing system. Up to 32 nodes at up to 4,000 feet can be on one bus without a repeater. The addressing scheme allows up to 256 units on a single network with repeaters. A CD ROM is included with contains a manual and demonstration software compatible with Windows 95, 98, NT, 2K, XP, and Vista . Ordering Information Model Number 485DSS Accessories 485PS2 232AMF5 232CAMR Description Distributed Smart Switch Power Supply, Wall transformer 6 ft Computer Cable, DB25 Male/Female DB25 Female to DB9 Male 6 inch Adapter Cable Operation A manual is contained on the CD ROM, which ships with the module. Refer to this manual for detailed operational instructions. Terminal block on the unit is used to connect the RS-485 signals and input power. The RS-232 signals are connected through a DB25 male connector DTE . The address is set using an internal DIP Switch. 2/4-Wire mode is set using an internal jumper. The unit communicates at 9600 baud using 8 data bits, 1 stop bit, and no parity. Once the host has connected a 485DSS to the network, the host can change its communications parameters to match that of the RS-232 device. International Office 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104 European Office Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445 PRODUCT INFORMATION B&B ELECTRONICS Specifications RS-232 Connector RS-485 Connector Communications Input Voltage Dimensions: DB-25 Male DTE Terminal Block 9600 baud, 8 data bits, no parity, 1 stop bit +11 to 16 VDC / 75mA x in x cm 485DSS-0812ds-2/2 2008 by B&B Electronics. All rights reserved. PRODUCT INFORMATION International Office 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104 European Office Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445

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485DSS-0812ds-1/2
2008 by B&B Electronics. All rights reserved.

Model 485DSS

Distributed Smart Switch

B&B ELECTRONICS

Features 9 Network Enable “dumb” RS-232 Devices 9 Network 32 RS-232 Devices up to 4,000 feet 9 Supports RS-422 and RS-485

Functional Description

The 485DSS allows non-addressable, “dumb” RS-232 devices to be connected on an addressable RS-485 network. The master node controls all communications to connected devices. By distributing the switching intelligence along the RS-485 network, wiring cost savings are substantial compared to a single switched “star” configuration. Devices can either be polled by the master node or request access to the bus through the RS-232 handshake line. This provides a versatile system for interconnecting devices that are designed for point-to-point communications. Because the units communicate using standard RS-485 signals, RS-232 devices can form their own network or be added to and existing system. Up to 32 nodes at up to 4,000 feet can be on one bus without a repeater. The addressing scheme allows up to 256 units on a single network with repeaters. A CD ROM is included with contains a manual and demonstration software compatible with Windows 95, 98, NT, 2K, XP, and Vista .
Ordering Information

Model Number 485DSS Accessories 485PS2 232AMF5 232CAMR

Description Distributed Smart Switch

Power Supply, Wall transformer 6 ft Computer Cable, DB25 Male/Female DB25 Female to DB9 Male 6 inch Adapter Cable

Operation

A manual is contained on the CD ROM, which ships with the module. Refer to this manual for detailed operational instructions. Terminal block on the unit is used to connect the RS-485 signals and input power. The RS-232 signals are connected through a DB25 male connector DTE . The address is set using an internal DIP Switch. 2/4-Wire mode is set using an internal jumper. The unit communicates at 9600 baud using 8 data bits, 1 stop bit, and no parity. Once the host has connected a 485DSS to the network, the host can change its communications parameters to match that of the RS-232 device.

International Office 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104 European Office Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445

PRODUCT INFORMATION

B&B ELECTRONICS

Specifications RS-232 Connector RS-485 Connector Communications Input Voltage Dimensions:

DB-25 Male DTE Terminal Block 9600 baud, 8 data bits, no parity, 1 stop bit +11 to 16 VDC / 75mA x in x cm
485DSS-0812ds-2/2
2008 by B&B Electronics. All rights reserved.

PRODUCT INFORMATION

International Office 707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104 European Office Westlink Commercial Park Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445

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Datasheet ID: 485DSS 521486