NEC EXPRESS5800/120Rc-2 Service Manual page 178

RJ-45 LAN
Table C-6 lists the connector pinouts for the RJ-45 LAN.
Pin Signal
1 TX+
2 TX-
3 RX+
4 NC
5 NC
6 RX-
7 NC
8 NC
Parallel Port
Table C-7 lists the connector pinouts for the parallel port.
Pin Signal
1 STROBE_L
2 Data bit 0
3 Data bit 1
4 Data bit 2
5 Data bit 3
6 Data bit 4
7 Data bit 5
8 Data bit 6
9 Data bit 7
C-6 Connectors
Table C-6. RJ-45 LAN Connector Pinouts
Description
Transmit data plus—the positive signal for the TD differential pair contains
the serial output data stream transmitted onto the network
Transmit data minus—the negative signal for the TD differential pair
contains the same output as pin 1
Receive data plus—the positive signal for the RD differential pair contains
the serial input data stream received from the network
Receive data minus—the negative signal for the RD differential pair contains
the same input as pin 3
Table C-7. Parallel Port Connector Pinouts
Pin Signal
10 ACK_L
11 Busy
12 PE
13 SLCT
14 AUFDXT_L
15 ERROR_L
16 INIT_L
17 SLCTIN_L
18−25 GND