HP AD278A, Руководство по эксплуатации

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Table B-6 RJ-45 Pin Assignments
Pin # DTE Use Description Signal
1 Input Ring Indicator RI
2 Input Data Set Ready DSR
3 Output Request to Send RTS
4 N/A Chassis Ground GND
5 Output Transmitted Data TXD
6 Input Received Data RXD
7 Reference Signal Ground SG
8 Input Clear to Send CTS
9 Output Data Terminal Ready DTR
10 Input Data Carrier Detect DCD
RJ45 8-Pin Plug Hardware Handshaking (DTR) Cable
Using an 8-pin plug, the cable wiring shown in Table B-7 , is sufficient for a terminal, printer, or
other DTE devices configured for DTR (hardware) flow control. However, some terminals and
printers may use a signal other than DTR for flow control. In addition, some terminals and
printers may have other cable requirements. Consult your terminal or printer manual for this
information. For universal compatibility, use the RJ-45 10-wire terminal/printer cable or a RJ-45
to DB-25 adapter.
Table B-7 lists the pin-out conenction between the RJ-45 8-pin adapter and the DB25
terminal/printer with DTR handshaking.
Table B-7 Terminal/Printer Cable with DTR Handshaking
DB-25 Male (Peripheral) RJ-45 8-Pin Plug (MUX Port End)
Signal Pin Pin Signal
RxD 3 Connected to 4 TxD
TxD 2 Connected to 5 RxD
DTR 20 Connected to 7 CTS
SG 7 Connected to 6 SG
GND 1 (or shell) Connected (via
shield) to 3 GND
RTS+CTS 4+5 Jumpered
IMPORTANT:
Some terminal or printer manufacturers may use different methods of flow
control. Consult your documentation for specific wiring requirements.
RJ-45 8-Pin Plug Hardware Handshaking (RTS/CTS) Cable
Using an 8-pin plug, the cable wiring shown in Table B-8 is sufficient for a terminal, printer, or
other DTE devices configured for RTS/CTS (hardware) flow control. However, some terminals
and printers may have other cable requirements. Consult your terminal or printer manual for
this information. For more universal compatibility, use the RJ-45 10-wire terminal/printer cable
or a RoHS RJ-45 to DB-25 adapter.
Table B-8 lists the pin-out connection between the RJ45 adapter and the DB-25 terminal/printer
with RTS/CTS handshaking.
36 Peripheral Connections