Smc-networks Barricade SMC7004ABR Instrukcja Użytkownika Pobierz pdf (Strona 102)

ABLES

B-4

Serial Port Pin Assignments

The DB-9 serial port on the rear panel is used to connect the

Barricade to an ISDN TA or PSTN modem. The pin assignments

used to connect to this port are provided in the following tables.

Figure B-2. DB-9 Serial Port Pin Numbers

DB-9 Port Pin Assignments

EIA

Circuit

CCITT

Signal

Description Gateway’s

DB9 DTE

Pin #

PC DB9

DTE

Pin #

Modem

DB25

DCE Pin #

Signal

Direction

DTE-DCE

CF 109 DCD (Data Carrier Detected) 1 1 8 <------

BB 104 RxD (Received Data) 2 2 3 <------

BA 103 TxD (Transmitted Data) 3 3 2 ------>

CD 108.2 DTR (Data Terminal Ready) 4 4 20 ------>

AB 102 SG (Signal Ground) 5 5 7 -------

CC 107 DSR (Data Set Ready) 6 6 6 <------

CA 105 RTS (Request-to-Send) 7 7 4 ------>

CB 106 CTS (Clear-to-Send) 8 8 5 <------

CE 125 RI (Ring Indicator) 9 9 22 <------

1 2 ... 97 98 99 100 101 102 103 104 105 106 107 ... 111 112

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Smc-networks Barricade SMC7004ABR Instrukcja Użytkownika Strona 102