Park Air Systems Limited B63300HS User Manual

Page of 72
T6T 300 Watt VHF Transmitter
Page 93
Installation
HDLC Connector
The HDLC connector is an 8-way RJ48 socket used for connecting to a Mode 2 network computer. The
connector pin-out is shown below and detailed in Table 22.
.
Table 22  HDLC Connector
Pin
Signal
Characteristic
1
HDLC RX A (input)
RS422 differential synchronous data, 128 kbytes per second (±50 ppm).
2
HDLC RX B (input)
3
HDLC CL A (output)
RS422 differential synchronous data, 128 kbytes per second (±50 ppm).
4
HDLC TX B (output)
RS422 differential synchronous data, 128 kbytes per second (±50 ppm).
5
HDLC TX A (output)
6
HDLC CL B (output)
Pair to pin 3.
7
Ground
0 V.
8
Output supply
This output is between 21.6 and 32 Vdc (nominally 28 V) fused at 500 mA.
Pin 1
RJ48 Plug
Numbering is shown looking from the top of the connector.
The top is being viewed when the lever is on the bottom.