A6.2.1.10 Connecting Multiple Datadiscrete Modules; A6.2.1.11; Test Discrete Inputs (Dry/Hot Contacts, Relays, Etc); A6.2.1.12 Replacing The Input Power Fuse - Rutter VDR-100G3 Installation Manual

A6.2.1.10 Connecting Multiple DataDiscrete Modules
Up to ten DataDiscrete modules may be connected together to monitor up to 240 discrete signals.
To connect multiple modules:
Ensure all DataDiscrete modules are configured with unique NMEA-0183/IEC 61162
String Identifiers (described above);
Connect the output of the first DataDiscrete (pins TX+ and TX-, located on the front of
the module) to the data input of the second DataDiscrete (pins RX+ and RX-, located on
the front of the panel);
The output of the second module is connected to the input of the third, third to the
fourth, etc., until all required DataDiscrete modules are connected (to a maximum of
ten).
Warning! If more than 10 DataDiscrete modules are connected, data will be lost!
The output of the connected DataDiscrete modules is available via the output of the last module
in the chain. As noted in the Onboard DIP-Switch Settings section above, 10 DataDiscretes can
be daisy-chained at a 1/10 Hz broadcast rate, 5 at 1/6 Hz, 4 at 1/3 Hz, and 3 at 1 Hz.

A6.2.1.11

Test Discrete Inputs (Dry/Hot Contacts, Relays, Etc)

1. Contact connections should be verified.
2. Make note of which contact is connected to which point, identify the normal
state of the contact and edit the configuration file accordingly.
3. Repeat steps 1 and 2 for the remaining Discrete inputs.
A6.2.1.12 Replacing the Input Power Fuse
To access the DataDiscrete's circuit board:
Unplug the front panel input connectors;
Unscrew the 2 screws located on the front panel of the DataDiscrete enclosure in order
to remove the panel;
Slide the circuit board out of the enclosure.
Refer to DataDiscrete above for fuse location. The input power fuse is a 500mA fast-blow glass
cartridge fuse, 5 X 20 mm size. When replacing the fuse, ensure the fuse clips are secured to the
new fuse. If in doubt, squeeze the clips prior to insertion of the new fuse to tighten the grip.
For information on the NMEA Input Module (Navigation Sensor Multiplexor) see Chapter 10:
NMEA Module.Error! Reference source not found.
VDR-100G3/G3S Installation Manual
Appendix 6: External Interface Modules
A6.2.2 NMEA Input Module
15
06/10/2008