modem connection to CCPIII via external modem

Issue:

modem connection to CCPIII via external modem

Resolution:

The CCPIII does nor support an internal modem.  An external modem can be used.  Usually a Tracker is used to provide remote access.

The following is from page 32 of VAV0SVU01A-EN:

https://tranesupport.zendesk.com/hc/en-us/articles/11744522945677-VariTrac-III-CCP-literature

Sportster is the model we tested, but it is pretty much obsolete. The V92 should work with the same DIP switch settings. He said the echo has to be off, so whichever way that switch is going the other three should match.

 

Modem Requirements for the VariTrac CCP

It is recommended that a 56K baud US Robotics Sportster fax/data external

modem be used for VariTrac CCP applications. This is the only modem that has

been tested to function properly with the CCP, and is the only modem application

Trane will support with VariTrac. A dedicated phone line should be provided for

the modem.

Configuring the External Modem

The following configuration must be followed for 56K baud US Robotics fax/data

external modem:

Check the DIP switch settings on the back of the modem.

Make sure that switches 1, 4, 7, and 8 are down.

Make sure that all other switches are up.

Connecting the Modem to the VariTrac CCP

Use the following Trane adapters and cables to connect the modem to the central

control panel:

1 Use the 35914260, RJ12 to RJ12 cable, and the 35914263, 25-pin modem

adapter plug.

2 The modem should be powered down when making connections to the CCP.

3 Plug one end of the RJ12 cable into the central control panel PC port (RJ-12

style socket located on the bottom of the CCP).

4 Plug the other end of the RJ12 cable into the 25-pin modem adapter, and

attach the adapter to the 25-pin socket on the back of the modem.

5 The modem should be powered with the separate power supply transformer

shipped with the modem. (See the VariTrac CCP Installation Guide for additional

modem cabling and connection information.)

VAV-SVU01A-EN 33

Modem Operation

Power the modem on. The modem is now ready for use with the VariTrac CCP.

Remote connection to the modem is done using the VariTrac PC software and

selecting the remote connect option. The software provides a setup screen to

select the comm port for your PC modem, the site name, and the site phone

number. Once you are remotely connected to the site, the PC software

functions the same as if you were directly connected to the panel on site.

 

Other Question/Problem/Cause Statements:

• modem connection to CCPIII via external modem
• Dip switch settings for an external modem
• Can I use a US Robotics V92 modem with a VariTrac CCP?

Facts:

• VARITRAC III CENTRAL CONTROL PANEL (CCP)
• VariTrac III Central Control Panel (CCP)
• Varitrac Software

 

Additional Technical Support Only Information

 

Original wave: wave1692