User's Manual

ITC2100-NA Operation and Service Manual Version 1.0

Page 25 of 129

5.13 GPS-Alternative 1: Connection of GPS Antenna to Master-ITC

This alternative has the GPS receiver built into the antenna, i.e. this GPS reference receiver

receives the GPS signal and forwards the decoded data to the GPS interface card via

RS485 data cable.

Fig. 5-7: Connection of GPS antenna to Master-ITC

Inserting the GPS interface card in the ITC2100-NA:

1. Ensure that the unit is switched off, disconnect mains cable and battery connections.

2. Unscrew and remove cover plate of the slot next to the sync card.

3. Insert the GPS interface card in the free slot and secure.

4. Reconnect the mains and battery and switch on again.

5. Check that the green LED lights.

When preparing the connection cable, ensure that the pin connections are correct (see

chapter 7.6).

Connection of GPS antenna to several Master-ITC's:

The power line supples the GPS antenna with +12V. When the GPS antenna is to be con-

nected to several Master ITC's at the same time it receives its power supply from a single

Master. When preparing the connection cable with several D-sub9connectors for connec-

tion to the S-Com cards of the Master ITC's, the 12V supply must only be connected from

one S-Com card.

Important: There must be no connection to pin 1 (+12V) on all the other S-Com cards.