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5 Hardware
PCS-9785 Satellite-Synchronized Clock
5-15
Date: 2014-10-15
Pin No.
Symbol
Description
Port No.
06
2 TXD
RS-232: TXD
07
3 RXD
RS-232: RXD
Serial port 3
08
3 TXD
RS-232: TXD
09
3/4 SGND
Signal reference
10
3/4 FGND
Foiled layer
11
4 RXD
RS-232: RXD
Serial port 4
12
4 TXD
RS-232: TXD
13
5 RXD
RS-232: RXD
Serial port 5
14
5 TXD
RS-232: TXD
15
5/6 SGND
Signal reference
16
5/6 FGND
Foiled layer
17
6 RXD
RS-232: RXD
Serial port 6
18
6 TXD
RS-232: TXD
19
7 RXD
RS-232: RXD
Serial port 7
20
7 TXD
RS-232: TXD
21
7 SGND
Signal reference
22
7 FGND
Foiled layer
NOTICE!
The jumpers JP22 (for the group 1) and JP27 (for the group 2) should be "
ON
" while the
other jumpers should be "
OFF
" to set the port in timing message output mode.
5.6.5 TTL (NR1219A)
The COM module NR1219A provides 8 TTL output ports. The No.1~4 ports form the group 1 and
the No.5~8 form the group 2.
08020
08020
08020
08020
08020
08020
08020
08020
08020