
Serial Port 4 Connector
3-19
3
Serial Port 4 Connector
A 26-pin ribbon-cable (3M-type) header provides the interface to
Serial Port 4. Ribbon cable with mating connector can be used to
interface to this header. The pin assignments for this connector are
shown in the following table. This connector is not shielded.
NOTE: Signal names indicate functionality when EIA-232 SIM
module is installed.
Table 3-7. Serial Port 4 Interconnections
Ribbon Connector
Mated DB25
Pin #
Mated DB26
Pin #
Pin #
Signal Name
1
No Connect
1
1
3
TXD4
2
2
5
RXD4
3
3
7
RTS4
4
4
9
CTS4
5
5
11
DSR4
6
6
13
GND
7
7
15
DCD4
8
8
17
SP4_P9
9
9
19
SP4_P10
10
10
21
SP4_P11
11
11
23
SP4_P12
12
12
25
SP4_P13
13
13
2
SP4_P14
14
14
4
TXCI4
15
15
6
SP4_P16
16
16
8
RXCI4
17
17
10
LLB4
18
18
12
SP4_P19
19
19
14
DTR4
20
20
16
RLB4
21
21
18
RI4
22
22
20
SP4_P24
23
23
22
TXCO4
24
24
24
TM4
25
25
26
No Connect
26
Содержание MVME760
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