hey all! i'm working on building a retro lab/DMZ with DEC networking gear, and i'm a little confused trying to figure out how my DECbrouter 90T2 will connect to my existing LAN. according to the documentation i can use the BNC port on the top of the unit as well as the RJ45 port at port 0, but it looks like both of these are disabled when the unit is installed in a backplane, which is my intended configuration (a 900 backplane specifically):
the documentation doesn't mention the 900 backplane, but i can't seem to find documentation for this model that does. i would assume the behavior is the same. that leaves me with ports 1 and 2, which have an odd configuration. the cable used for RS232 ethernet connectivity is DEC P/N BC12L-06, with the following connector configuration:
i haven't been able to locate this cable, so i may need to make my own. thankfully a pinout exists here in case anyone else stumbles on this. does anyone know if i'm misunderstanding the documentation or my configuration, or, if needed, where i could find one of these cables?
thank you!
Code:
Twisted Pair (10BASET) connector–Connects the
DECbrouter 90 to a 10BASET twisted pair. Not used
when the DECbrouter 90 is installed in the DEChub 90
backplane.
[...]
Port 0 network connector (BNC)–Connects the
DECbrouter 90 to the work group ThinWire segment.
Not used when the DECbrouter 90 is either installed
in the DEChub 90 backplane or connected through the
twisted pair (10BASET) connector.
the documentation doesn't mention the 900 backplane, but i can't seem to find documentation for this model that does. i would assume the behavior is the same. that leaves me with ports 1 and 2, which have an odd configuration. the cable used for RS232 ethernet connectivity is DEC P/N BC12L-06, with the following connector configuration:
Code:
Des 50-way, straight, micro-champ (DECbrouter end),
Connector 2 25-way, straight, male, D-type (RS232 end).
i haven't been able to locate this cable, so i may need to make my own. thankfully a pinout exists here in case anyone else stumbles on this. does anyone know if i'm misunderstanding the documentation or my configuration, or, if needed, where i could find one of these cables?
thank you!
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