Multitech MultiModem DSVD MT5600DSVD Instruction Manual download pdf (Page 23)

i.LON SmartServer 2.0 Hardware Guide 13

Connecting Legacy or Nonnative Devices to the RS-232 and RS-485

Serial Ports

You can connect legacy systems or nonnative networks such as BACnet and CAN (requires an

external interface, sold separately) to the SmartServer’s RS-232 and RS-485 serial ports, and use a

Freely Programmable Module (FPM) driver for communication between the SmartServer and the

devices over the RS-232 or RS-485 serial interfaces.

You can create FPM drivers for your SmartServer with Echelon i.LON SmartServer 2.0 Programming

Tools. A demo version of the Echelon i.LON SmartServer 2.0 Programming Tools is available on the

i.LON SmartServer 2.0 DVD. To build FPM drivers and deploy them on your SmartServer, you need

to order the Echelon i.LON SmartServer 2.0 Programming Tools DVD (Echelon part number 72111-

409). To order this DVD, contact your Echelon sales representative.

In addition, a programming license must be installed on the SmartServer to deploy FPM drivers on it.

If a programming license is not pre-installed on your SmartServer, you can order one (Echelon model

number 72161) from the Echelon Web site at

www.echelon.com/products/cis/activate.

For more information on creating FPM drivers and deploying them on your SmartServer, see the

i.LON SmartServer 2.0 Programming Tools User’s Guide.

Digital Outputs

The SmartServer includes two high-voltage, high-current, single pole single throw (SPST) relay

outputs rated at 230VAC @ 10 A or 24VDC @ 10A. The relay connections are implemented on screw

terminals 5–8: Output 1 is connected to terminals 5-6; Output 2 is connected to terminals 7–8. The

SPST relay contacts are polarity-insensitive, and they can be used to switch both AC and DC loads.

The relays require a minimum load of 5V at 5mA in order to avoid low-voltage contact pitting, and

therefore should not be used to switch TTL level signals.

Each of the relay outputs is controlled by a Digital Output application on the SmartServer. The relays

can be triggered by the Digital Output applications or by the receipt of remote messages. See Chapter 9

of the i.LON SmartServer 2.0 User’s Guide for configuring the SmartServer to use the digital outputs

to which it is connected.

The following figure illustrates the location of the relay output screw terminals on the SmartServer.

The following table lists the enclosure markings for the relay output screw terminals on the

SmartServer and their connection type.

Screw Terminal Enclosure Marking Relay Connection

5 Output 1 Relay output 1

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 34 35

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