Commander Installation Guide

8.3.2INSTALLING AN ARCHIPEL DOWNLOAD CARD IN A P.C.

The Archipel card is a proprietary, half-length ISA bus adaptor card that allows data to be converted into the 20Mbit/s serial data link used by Commander.

If Trilogy Communications has supplied a P.C., an Archipel download card will have been pre-installed. Otherwise, install the card in accordance with the instructions provided with your PC. The card is not “Plug and Play” and will not show in the Windows 95 system dialogue found under Control Panel. Conflicts with other devices will cause the Archipel card to fail to connect to the matrix. This will first become apparent during the system “download” operation. If the card is fitted correctly and all cables are connected, check for system conflicts with CD-ROM drives, sound cards and network cards.

In the configuration used with the Commander system, the Archipel card is not interrupt driven: it operates by writing to specified memory blocks. The base memory address is set on switch IN3: the default is150. Other options are shown in the diagram below. Any change to the hardware settings needs to be matched in the PathFinder software “settings” dialogue. See Section 3.3 for details.

The card has a number of jumper link settings and short ribbon cable assemblies that must be set and connected correctly. The card is illustrated below.

NOTE: Max download cable length is 20 metres using RS422 screened cable.

The connections given below are for the Desktop PC link. Cable is twin twisted pair, with overall screen.

PC D37

Commander D9

 

 

Fixed Socket

Fixed Plug

Notes

Pin

Pin

 

2, 20

4, 8 (+,-)

Pair 1. From PC (+,-)

5, 23

5, 9 (+,-)

Pair 2. To PC (+,-)

(21)

3

Cable screen - not connected at PC.

In some installations, communications problems have arisen from the PC and Commander not having a common earth reference. It is important to ensure that both the PC and Commander system have proper earth connections, or at least that the PC and Commander earths are connected together. Sometimes connecting the cable screen at the PC end of the cable can solve the problem.

Trilogy Communications Limited

Issue 9

Page 63 of 81

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Image 63
Trilogy Touch Technology 9 manual Installing AN Archipel Download Card in a P.C