Smiths Kelvin Hughes Nucleus 3 5000 Series, System Handbook

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SCOPE OF THIS DOC U MENT
This document describes the input/output PCBs
(NNR-A910, for series 6000 and 7000 displays and
NNR-A996 for series 5000 displays) of the Nucleus 3
series of Radar Displays.
NOTE:
The input/output PCB (NNR-A996) used in the 5000 series
displays is functionally equivalent to the input/output PCB
(NNR-A910) used in the 6000/7000 series displays, but is
mechanically different. I/O PCB (NNR-A996) fits
internally and requires external connector access. Socket
connectors are provided at the top and bottom of the PCB
for this purpose.
GEN ERAL PUR POSE SE RIAL IN PUTS
The I/O PCBs have four general purpose RS232/RS422
inputs; serial 1, 2, 3 and 4, three RS232 outputs and one
RS422 output. The inputs are opto-isolated, in accordance
with IEC 1162 series specifications.
The inputs/outputs are primarily for NMEA ship's sensor
inputs and inputs from external equipment (e.g. ECDIS,
GPS, Depth indicators, etc.). A general purpose CTS
(Clear to Send) input is also provided for use by "slow"
external devices (e.g. a line printer). The implementation
and use of this is target device and software dependent.
Se rial Re ceived Data
The serial received data (Receive data #1, #2, #3 and #4)
can be either RS232 or RS422. Connections are via
sockets PLF and PLG with pinouts as specified below.
PLF (Se rial 1 & 2)
Pin Description
1
Transmit Data #1 output - RS232
2 Receive Data #1 input ‘A’ - RS232 ‘data’ or
RS422 ‘+’
3 Local GND
4 +12V
5
+5V
6 Receive Data #1 input ‘B’ - RS232 ‘gnd‘ or
RS422 ‘-’
7 Transmit Data #2 output - RS232
8 Receive Data #2 input ‘A’ - RS232 ‘data’ or
RS422 ‘+’
9 Local GND
10
+12V
11 +5V
12 Receive Data #2 input ‘B’ - RS232 ‘gnd’ or
RS422 ‘-’
13 CTS input - signal
14
CTS input - gnd
PLG (Se rial 3 & 4)
Pin Description
1 Transmit Data #3 output - RS232
2 Receive Data #3 input ‘A’ - RS232 ‘data’ or
RS422 ‘+’
3 Local GND
4
+12V
5 +5V
6 Receive Data #3 input ‘B’ - RS232 ‘gnd‘ or
RS422 ‘-’
7 Transmit Data #4 output ‘A’ - RS232
8
RS232 Receive Data #4 input ‘A’ - RS232
‘data’ or RS422 ‘+’
9
Local GND
10 +12V
11 +5V
12
Receive Data #4 input ‘B’ - RS232 ‘gnd’ or
RS422 ‘-’
13
Transmit Data #4 output ‘B’ - RS422 ‘-’
14 Local GND
Amdt 5 8aA.1 July 03
KH 2020
Chap 8a - Annex A
CHAPTER 8A
ANNEX A
SERIAL AND NMEA COMMUNICATIONS SPECIFICATION
OPTIONS FOR NUCLEUS 3 RADAR DISPLAYS