Installation Manual

AIS Installation Manual Issue 1 23
In the transponder unit the screen from some cable entries should be connected to ground at
the transponder, as shown in the table. The technique of connecting the screen is illustrated
below.
Function Lines te rminated by resistor Connect screen
at transponder
Display Display (VDU) port YES
LONG RANGE Long Range port PREFERRED
AUX / PILOT Auxiliary or Pilot port PREFERRED
MAIN Main port PREFERRED
RTCM RTCM port for differential correction PREFERRED
SEN 1 Sensor 1 port NO
SEN 2 Sensor 2 port NO
SEN 3 Sensor 3 port NO
SEN 4 Sensor 4 port NO
PREFERRED means that the screen may be connected either at the remote device or at the
transponder; if no other considerations apply, connection at the transponder is recommended.
6.4.3 Method of connecting screens at the transponder
If the screen is not to be connected at the transponder, secure the cleat over the outer cable
insulation.