25 Sep
2015
25 Sep
'15
2:17 a.m.
Does anyone have both of these that I can pick their brains?
Thanks, Paul
25 Sep
25 Sep
7:25 a.m.
-----Oorspronkelijk bericht-----
From: Paul Anderson
Sent: Friday, September 25, 2015 8:17 AM
To: General Discussion: On-Topic and Off-Topic Posts ; cctech at vax-11.org
Subject: RL01, RL02, RK06, RK07 cable differences
Does anyone have both of these that I can pick their brains?
Thanks, Paul
========
As far as I know, the difference is one or two wires.
That is, the RL01/RL02 cable has less wires than the RK06/RK07 cable.
I have both, I could measure it, but that would have to wait a few days.
- Henk
11:07 a.m.
On 9/25/2015 7:24 AM, tony duell wrote:
Actually, the terminators for the RL and RK06/07 drives are *identical*,
part number 70-12293-xx (The RL manual has no XX, the RK06/7 manual as
0-0 for XX, but no worries, that is just a revision number) .
Darn good thing, too, because the terminators have no markings on them. ;)
The wire in my RK06/RK07 cables has part number 1700051-00 on it. (Not a
reliable indicator - see below). According to the manual, the RK06/RK07
cable assembly part numbers are 70-12292-LL where LL (length) may be 8,
12, 25 or 40. All of my RK06/RK07 cables have the part number.
The wire in my RL cables is marked two different ways. One cable has
the DEC part number for the cable itself (70-12122-10), and the wire is
part number 1700051-01 (same as the RK cable!), and is marked AWM ...
2464. Others, which have no DEC part number on either the cable or the
wire, has AWM ... JUDD Wire Div. Style 2576 on the wire.
The wire I have on my RK06/07 cables is smooth and stiff, whereas the
wire in the RL cables tends to be more "bumpy" and more flexible and
shinier. However, given the wire part number 1700051-xx appears on both
kinds, and is not shiny, wire used is itself not a reliable indicator.
The DEC part numbers for the RL cables themselves apparently varies:
BC20J-XX DEC part number 70-12122-10 - RL11, RLV11
BC80J-20 - RL8A
BC80M-6 - RLV12
I would say that if an unmarked cable is 6, 10 or 20 feet long, and
flexible it is mostly like an RL cable. If the cable is 8, 12, 25, or
40 feet long it is probably an RK06/07 cable.
JRJ
Does anyone have both of these that I can pick their brains?
Yes.
The RK06/07 cable connects all pins. The RL01/02 one connects only those used
by the RL drives. I doubt the characteristic impedance is different as the terminators
are the same.
-tony
1:24 p.m.
> The RK06/07 cable connects all pins. The RL01/02 one connects only those used
> by the RL drives. I doubt the characteristic impedance is different as the
terminators
> are the same.
>
> -tony
Actually, the terminators for the RL and RK06/07 drives are *identical*,
part number 70-12293-xx (The RL manual has no XX, the RK06/7 manual as
0-0 for XX, but no worries, that is just a revision number) .
Bad wording on my part, but that's what I meant. There was only one type of
terminator, it was used for both the RL's and RK06/07.
-tony
1:47 p.m.
On 9/25/2015 12:24 PM, tony duell wrote:
D'oh. Actually, lazy *reading* on *my* part. D'oh.
JRJ
> The RK06/07 cable connects all pins. The RL01/02 one connects only those used
> by the RL drives. I doubt the characteristic impedance is different as the
terminators
> are the same.
>
> -tony
Actually, the terminators for the RL and RK06/07 drives are *identical*,
part number 70-12293-xx (The RL manual has no XX, the RK06/7 manual as
0-0 for XX, but no worries, that is just a revision number) .
Bad wording on my part, but that's what I meant. There was only one type of
terminator, it was used for both the RL's and RK06/07.
-tony
2 p.m.
Thanks for the feedback everyone.
The 17 class # should be the type of wire used in the cable, so maybe the
-00 ans -01 is the difference .
I'm just trying to sure weather or not the RL and RK cables are
interchangeable. Sounds like the RK might work on the RL, but not the other
way.
I have plastic and metal terminators, and the same with the cables and was
trying to remember if that had anything to do with it.
Seems like we used to use the BC80 M and J for any controller when we had
them.
For whatever reason DEC replaced the 70-12122 with the BC21Z.
Is the 70-12145 the electrical connector for the transition bracket, the
metal mounting bracket, or the entire assembly?
Thanks, Paul
On Fri, Sep 25, 2015 at 10:07 AM, Jay Jaeger <cube1 at charter.net> wrote:
On 9/25/2015 7:24 AM, tony duell wrote:
used
Does anyone have both of these that I can pick their brains?
Yes.
The RK06/07 cable connects all pins. The RL01/02 one connects only those by the RL drives. I doubt the characteristic
impedance is different as
the terminators
are the same.
-tony
Actually, the terminators for the RL and RK06/07 drives are *identical*,
part number 70-12293-xx (The RL manual has no XX, the RK06/7 manual as
0-0 for XX, but no worries, that is just a revision number) .
Darn good thing, too, because the terminators have no markings on them. ;)
The wire in my RK06/RK07 cables has part number 1700051-00 on it. (Not a
reliable indicator - see below). According to the manual, the RK06/RK07
cable assembly part numbers are 70-12292-LL where LL (length) may be 8,
12, 25 or 40. All of my RK06/RK07 cables have the part number.
The wire in my RL cables is marked two different ways. One cable has
the DEC part number for the cable itself (70-12122-10), and the wire is
part number 1700051-01 (same as the RK cable!), and is marked AWM ...
2464. Others, which have no DEC part number on either the cable or the
wire, has AWM ... JUDD Wire Div. Style 2576 on the wire.
The wire I have on my RK06/07 cables is smooth and stiff, whereas the
wire in the RL cables tends to be more "bumpy" and more flexible and
shinier. However, given the wire part number 1700051-xx appears on both
kinds, and is not shiny, wire used is itself not a reliable indicator.
The DEC part numbers for the RL cables themselves apparently varies:
BC20J-XX DEC part number 70-12122-10 - RL11, RLV11
BC80J-20 - RL8A
BC80M-6 - RLV12
I would say that if an unmarked cable is 6, 10 or 20 feet long, and
flexible it is mostly like an RL cable. If the cable is 8, 12, 25, or
40 feet long it is probably an RK06/07 cable.
JRJ
5:08 p.m.
On 9/25/2015 1:00 PM, Paul Anderson wrote:
Thanks for the feedback everyone.
The 17 class # should be the type of wire used in the cable, so maybe the
-00 ans -01 is the difference .
That would surprise me. That last two digit suffix is typically a revision.
I'm just trying to sure weather or not the RL and
RK cables are
interchangeable. Sounds like the RK might work on the RL, but not the other
way.
I think that has been my experience. I know that the RL cables do not
work with the RK drives, because I tried it once.
I have plastic and metal terminators, and the same
with the cables and was
trying to remember if that had anything to do with it.
I have only ever seen plastic ones, and I have both kind of drives. So,
no, I don't think so.
Seems like we used to use the BC80 M and J for any controller when we had
them.
For whatever reason DEC replaced the 70-12122 with the BC21Z.
Is the 70-12145 the electrical connector for the transition bracket, the
metal mounting bracket, or the entire assembly?
From the RL01/02 user guide it appears that part number
is for the
assembly. I ran out of time before I could check the controller
documents.
Thanks, Paul
On Fri, Sep 25, 2015 at 10:07 AM, Jay Jaeger <cube1 at charter.net> wrote:
On 9/25/2015 7:24 AM, tony duell wrote:
used
Does anyone have both of these that I can pick their brains?
Yes.
The RK06/07 cable connects all pins. The RL01/02 one connects only those by the RL drives. I doubt the characteristic
impedance is different as
the terminators
are the same.
-tony
Actually, the terminators for the RL and RK06/07 drives are *identical*,
part number 70-12293-xx (The RL manual has no XX, the RK06/7 manual as
0-0 for XX, but no worries, that is just a revision number) .
Darn good thing, too, because the terminators have no markings on them. ;)
The wire in my RK06/RK07 cables has part number 1700051-00 on it. (Not a
reliable indicator - see below). According to the manual, the RK06/RK07
cable assembly part numbers are 70-12292-LL where LL (length) may be 8,
12, 25 or 40. All of my RK06/RK07 cables have the part number.
The wire in my RL cables is marked two different ways. One cable has
the DEC part number for the cable itself (70-12122-10), and the wire is
part number 1700051-01 (same as the RK cable!), and is marked AWM ...
2464. Others, which have no DEC part number on either the cable or the
wire, has AWM ... JUDD Wire Div. Style 2576 on the wire.
The wire I have on my RK06/07 cables is smooth and stiff, whereas the
wire in the RL cables tends to be more "bumpy" and more flexible and
shinier. However, given the wire part number 1700051-xx appears on both
kinds, and is not shiny, wire used is itself not a reliable indicator.
The DEC part numbers for the RL cables themselves apparently varies:
BC20J-XX DEC part number 70-12122-10 - RL11, RLV11
BC80J-20 - RL8A
BC80M-6 - RLV12
I would say that if an unmarked cable is 6, 10 or 20 feet long, and
flexible it is mostly like an RL cable. If the cable is 8, 12, 25, or
40 feet long it is probably an RK06/07 cable.
JRJ
5:56 p.m.
On Fri, Sep 25, 2015 at 01:00:32PM -0500, Paul Anderson wrote:
I'm just trying to sure weather or not the RL and
RK cables are
interchangeable. Sounds like the RK might work on the RL, but not the other
way.
That matches my understanding (I used to run both). They definitely
don't interchange *both* ways.
I have plastic and metal terminators, and the same with
the cables and was
trying to remember if that had anything to do with it.
I thought the shiny ones were just the FCC version, but I wasn't really
paying attention. I think those do interchange both ways.
John Wilson
D Bit
3223
days inactive
3223
days old
8 comments
5 participants
participants (5)
-
ard＠p850ug1.demon.co.uk -
cube1＠charter.net -
henk.gooijen＠hotmail.com -
useddec＠gmail.com -
wilson＠dbit.com