Connecting a BC80M cable to a RLV12 controller
fireflyst at earthlink.net
Thu Nov 10 16:11:15 CST 2005
Hmm, firmware based 11s seem to vary as far as how they respond on bootup.
My 11/23plus gives me "MEMORY TEST"(15 second pause)384KW. START?
Then I type DL at the prompt and it boots from the RL02.
On an 11/73, I assume you'd still have native RL0x support, so, perhaps
you'd still have the "START?" prompt?
If you want to boot it manually, i.e. if it doesn't have native RL support,
you can enter an RL02 bootstrap when the console is in ODT mode. This is
what I have to do for certain magtapes or all MSCP devices, because the 23+
doesn't have MSCP support built in to the firmware.
Now secondly, I know you can configure a CPU to autoboot a certain device.
That, I'm sure they carried over from the 23+ on to later machines.
You need the 11/73 processor manual and the RLV12 manual. Get those and you
should be able to figure it out.
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of David Betz
Sent: Thursday, November 10, 2005 3:50 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Connecting a BC80M cable to a RLV12 controller
I finally got a drive select plug for my RL01 drive and would like to
try connecting it to my 11/73 but I find that the cable that is
supposed to plug into the RLV12 controller isn't keyed so it can go
in either way. How do I tell what the correct orientation is for this
cable? I'm assuming that if I plug it in backwards I'll fry the
controller and/or drive. The only markings on the end of the cable
that connects to the controller are the manufacturers name "Berg" and
the letters A and B near one end and VV and UU near the other end.
How should this cable be inserted into the RLV12?
Also, assuming I get this straightened out, what should expect to
happen on power up? Should the 11/73 automatically boot from the
RL01? I have an MXV11A boot board installed. Or do I get a console
prompt and have to select the boot device on the console?
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