Article 161829 of comp.os.vms: Lies BENCHABANE writes: > I want to have the configuration (pinning) of the H8575-E adapter. > > H8575-E is a 6 pins (MMJ) to 25 pins adapter. >[...] Quote from a saved posting by Andreas Fassl: > Here's a partial post of the comp.unix.ultrix FAQ: > > 26. What are the pinouts of the MMJ jacks on the back of various DECstations > and VAXstations? > > This describes the 6-pin modified modular jack (MMJ) used for serial ports > on various DECstations and VAXstations, as well as on other DEC equipment. > > DEC carries four DB-to-MMJ adaptors. They are internally wired as follows > > Rdy Out TX+ TX- RX- RX+ Rdy In > Adaptor Gender 1 2 3 4 5 6 Use with: > -------------------------------------------------------------------------- > H8575-A F 20 2 7 7 3 6&8 VTxxx terminal > H8571-C M 6 3 7 7 2 20 DEC printer > H8571-D M 6 3 7 7 2 20 Modem > H8571-E M 20 2 7 7 3 6&8 Female terminal > or LaserWriter > -------------------------------------------------------------------------- > > RS-232 using DB-25 connectors: > DTE DCE > Terminal Modem > or computer > Pin Number Signal Name > 2 TD Transmit Data --> > 3 RD Receive Data <-- > 7 GND Ground --- > 6 DSR Data Set Ready <-- > 8 DCD Data Carrier Detect <-- > 20 DTR Data Terminal Ready --> > > -- > John R. Frandsen (407)676-7400 | "...my occupational hazard is that my > frandsen@jrfvax.enet.dec.com | occupation's just not around" - J. Buffett > Normal disclaimer that all opinions are my own... >[...] Another quote from Barry Winter: > >Hi, anyone know the pin-out of the modified modular jack connector on a > >Micro vax 3400 (and a few other bits) > > > Pin Signal > 1 rdy out > 2 tx+ > 3 tx- > 4 rx- > 5 rx+ > 6 rdy in > > pins 1 and 6 are frequently not used. > > I think that pin 1 of the one furthest from the tab. >[...] Wolfgang J. Moeller, Tel. +49 551 2011516 or -510, moeller@gwdvms.dnet.gwdg.de GWDG, D-37077 Goettingen, F.R.Germany | Disclaimer: No claim intended! ----- ----- P.S. Where in the world is ".dz" ???