2-18
2
1
TABLE 2-3 SERIAL HEADER-CONNECTOR WIRING
EXAMPLES
DCE
DTE
Signal
DB-25S
DB-25P
J4 Header
Pin#
Pin#
Pin#
Signal
Shield
1
1
1
Chassis
RxD
2
3
2
Receive Data
TxD
3
2
3
Transmit Data
RTS
4
4
CTS
5
5
DSR
-
6
GND
7
7
7
GND
DCD
-
8
DTR
20
20
DSR
6
6
+ 5 Vdc thru 3 K
Ω
Signal
DE-9S
DE-9P
J4 Header
Pin#
Pin#
Pin#
Signal
RxD
2
3
2
Receive Data
TxD
3
2
3
Transmit Data
RTS
7
7
CTS
8
8
DSR
-
6
GND
5
5
7
GND
DCD
-
1
DTR
4
4
DSR
6
6
+ 5 Vdc thru 3 K
Ω
2.7.3.3 LED Header
The LED Header J7 contains the signals for driving a duplicate set of 4863
LEDs. The LED Header is a 7-pin male header with 0.025 square pins on
0.1 centers. The header is not keyed. The LED header location on the 4863
OEM board is shown in Figure 2-6. LED Signal pin assignments are listed
in Table 2-4.
