DB-9 Serial Cables
Wrap Plugs: to test 7248 9-pin serial port 6298965 ____________________________________________________________________________ Cables DB9-to-DB-25 --------------------------------------------------------------------------- All cables FRUs at right | 40H6328 10" Systems with 9-pin port #3925 are modem cable and | 80G0597 4m #3926 requires interposer | 11H8268 ( 7015-R30/R40 - no FC ) 58F2861 to be use as | 6298963 ( 10-inch ) terminal/printer cable | _________________________|_________________________________________________ ( This is the pinout of the cable DB9F/DB25M that comes with some POWERPCs ) ( An interposer 58F2861 must be added for a terminal ) 5 1 _________________________ System _|_______|_ | DB25 Side | DB-9 Side | End | o o o o o | |____________|____________| \ o o o o / | Signal pin | pin Signal | Female / _____ \ |____________|____________| DB-9 9 6 | | | 1,Shell ______ Shell | | TxD 2_____3 TxD | | RxD 3_____2 RxD | 1 Device End 13 | RTS 4_____7 RTS | _|_______________________|_ | CTS 5_____8 CTS | | . . . . . . . . . . . . . | | DSR 6_____6 DSR | \ . . . . . . . . . . . . / | CD 8_____1 CD | |_____________________| | S Gnd 7_____5 S Gnd | 14 DB-25 Male 25 | DTR 20_____4 DTR | | RI 22_____9 RI | |_________________________| ____________________________________________________________________________ Cable DB-25 to DB-9 (No interposer needed) (not for modem) No P/N 1 Device End 13 _________________________ _ł_______________________ł_ | DB25 Side | DB-9 Side | | . . . . . . . . . . . . . | |____________|____________| \ . . . . . . . . . . . . / | Signal pin | pin Signal | |_____________________| |____________|____________| 14 DB-25 Male 25 | TxD 2_____2 RxD | | RxD 3_____3 TxD | | RTS 4_____8 CTS | 5 1 | CTS 5_____7 RTS | System _|_______|_ | DSR 6_ | End | o o o o o | | CD 8_|___4 DTR | \ o o o o / | S Gnd 7_____5 S Gnd | Female / _____ \ | __6 DSR | DB-9 9 6 | DTR 20__|__1 DCD | |_________________________| ____________________________________________________________________________ Pin-to-pin Converter Cable __________________________________ | | | | RJ45 Side | DB9 Side | |_________________|________________| | Signal pin | pin Signal | |_________________|________________| | Gnd Shld 1 | - N/A | | RTS 2 | 7 RTS | | RxD 3 | 2 RxD | | CD 4 | 1 DCD | | Sgnl Gnd 5 | 5 Sgnl Gnd | | TxD 6 | 3 TxD | | DTR 7 | 4 DTR | | CTS 8 | 8 CTS | |_________________|________________| This pin assignment only convert RJ45 64-port type to DB9. WARNING: Don't use this pinout for 128-port or 7318. ____________________________________________________________________________ Terminal Cable (PC as terminal) (not for modem) __________________________________ | RJ45 Side | DB9 Side | |_________________|________________| | Signal pin | pin Signal | |_________________|________________| | Gnd Shld 1 | - N/A | | RTS 2 | 8 CTS | | RxD 3 | 3 TxD | | CD 4 | 4 DTR | | Sgnl Gnd 5 | 5 Sgnl Gnd | | TxD 6 | 2 RxD | | DTR 7 | 6,1 DSR,DCD | | CTS 8 | 7 RTS | |_________________|________________| ___________ _ 16-port _ _____________ | RS/6000 |__| Concentrator RJ-45 to DB-9 PC Terminal | |___________| |_ _| |_____________| DB-25 (or RJ-45 64port type ) to DB9 for HP Laserjet IV _____________________________________ | | Computer | Printer | | | Side | Side | |________|________________|___________| | Signal | DB-25 or RJ-45 | DB-9 HP | |________|________________|___________| | CTS | 5 or 8 _____ 1 RTS | | RD | 3 or 3 _____ 2 TD | | TD | 2 or 6 _____ 3 RD | | DTR | 20 or 7 _____ 4 DSR | | Gnd | 7 or 5 _____ 5 Gnd | | CD | 8 or 4 _____ 6 DTR | | | | | | | |__ 8 DTR | | | | |________|____________________________| NOTE: RJ-45 used pinout is 64-port type, not 128-port . ____________________________________________________________________________ 128-Port RJ-45 to DB9 for HP Laserjet IV _______________________________ | | System | Printer | | | End | end | |________|__________|___________| | Signal | RJ-45 | DB-9 HP | |________|__________|___________| | | | | RD | 5 _____ 2 TD | | TD | 4 _____ 3 RD | | DTR | 8 _____ 4 DSR | | S Gnd | 6 _____ 5 Gnd | | DSR | 1 _____ 6 DTR | | CTS | 7 _____ 8 DTR | |________|______________________| NOTE: This cable has not been tested but it should work. There is 2 pins identified as DTR: 6 and 8. HP says to wire pin 6 to DSR and pin 8 to CTS of the system end. I figure out that one DTR is used to signal the system the printer is ON and the other DTR is used for hardware flow control. Cable DB-9 to DB-9 (No interposer needed) (not for modem) No P/N _________________________ 5 1 | DB-9 Side | DB-9 Side | Device _|_______|_ |____________|____________| End | o o o o o | | Signal pin | pin Signal | \ o o o o / |____________|____________| Female / _____ \ | TxD 3_____2 RxD | DB-9 9 6 | RxD 2_____3 TxD | | RTS 7_____8 CTS | 5 1 | CTS 8_____7 RTS | System _|_______|_ | DTR 4_____6 DSR | End | o o o o o | | |_1 CD | \ o o o o / | | Female / _____ \ | DSR 6_____4 DTR | DB-9 9 6 | CD 1_| | | | | GND 5_____5 GND | | RI 9 9 RI | |_________________________| Updated Dec 21 2000 by Bruno Croft