RK11 disk controller - Revision history

Glitch: /* RKV11-D */ adding picture of RKV11-D and H780 removed from mounting box, description of mounting

2024-09-26T16:52:19Z

‎RKV11-D: adding picture of RKV11-D and H780 removed from mounting box, description of mounting

Jnc: +Cat

2023-09-13T21:04:09Z

+Cat

Jnc: /* Further reading */ +RKV11-D Field Maintenance Print Set

2023-02-01T00:07:23Z

‎Further reading: +RKV11-D Field Maintenance Print Set

Jnc: fix broken ext link, add the rest

2021-12-11T16:22:40Z

fix broken ext link, add the rest

Jnc: /* Further reading */ +1

2021-04-07T03:22:10Z

‎Further reading: +1

Jnc: /* RK11-E */ better link

2020-12-06T14:33:20Z

‎RK11-E: better link

Jnc: Better naming system

2020-10-29T15:18:46Z

Better naming system

Jnc: typo

2020-10-28T19:28:03Z

typo

Jnc: avoid redir

2020-10-28T19:26:30Z

avoid redir

Jnc: clarify

2020-02-14T20:19:57Z

clarify

@@ Line 50: / Line 50: @@
 ==RKV11-D==
 The RKV11-D is a variant of the RK11-D for the QBUS (the others are all UNIBUS).
-It uses three of the four quad cards of the RK11-D (M7254-6), along with a replacement fourth card (M7268), in a different custom 4 slot quad-high system unit backplane. The M7268 is connected via two pairs of [[flat cable]]s to two dual cards, one of which (M7269) plugs into a QBUS backplane slot, and the other (M993-YA) into the first RK05 drive.
+It uses three of the four quad cards of the RK11-D (M7254-6), along with a replacement fourth card (M7268), in a different custom 4 slot quad-high system unit backplane. The M7268 is connected via two pairs of [[flat cable]]s to two dual cards, one of which (M7269) plugs into a QBUS backplane slot, and the other (M993-YA) into the first RK05 drive. The RKV11-D is mounted in a [[BA11-M]] style mounting box with [[H780]] power supply. The [[BA11-M]] front panel is replaced with an expansion box front panel, with a single indicator for '''DCOK'''.
 It is program compatible with the RK11-D, except that it only supports [[Q16]] QBUS mode when writing data. The two extended memory bits in the CSR have no effect; they may be read and written, but are not connected to anything.

← Older revision		Revision as of 21:04, 13 September 2023
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	[[Category: UNIBUS Storage Controllers]]		[[Category: UNIBUS Storage Controllers]]
	[[Category: QBUS Storage Controllers]]		[[Category: QBUS Storage Controllers]]
		+	[[Category: DEC Documentation Errors]]

@@ Line 253: / Line 253: @@
 * ''RKV11-D disk drive controller technical manual'' (not available online, but in fiche - EP-RKV11-TM-001)
 [[Category: UNIBUS Storage Controllers]]
 [[Category: QBUS Storage Controllers]]

@@ Line 1: / Line 1: @@
 The '''RK11''' and '''RKV11''' series of controllers for the [[UNIBUS]] and [[QBUS]] are for the earlier RK moving-[[head]] [[magnetic storage|magnetic]] [[disk]] [[drive]]s ([[RK02/03 disk drive|RK02]]-[[RK05 disk drive|RK05]]), all based on the [[IBM 2315]] drive and pack.
-(The later [[RK06/07 disk drive|RK06 and RK07]], and their controller, the [[RK611]], are a different drive and pack.)
+(The later [[RK06/07 disk drive|RK06 and RK07]], and their controller, the [[RK611]], are a different and entirely incompatible  drive and pack.)
 There are several models of the RK11, which are basically identical in their programming interface; differences between them are discussed in the sections on the individual models (below).
-The UNIBUS RK11's all connect to the RK drive(s) through a bus carried over a [[BC11A]] cable, the standard UNIBUS cable.
+The UNIBUS RK11's all connect to the RK drive(s) through a [[bus]] carried over a [[BC11A]] cable, the standard UNIBUS cable.
 ==Early RK11 version==
@@ Line 33: / Line 33: @@
 ==RK11-D==
-The RK11-D was a re-implementation of the RK11-C on four [[DEC card form factor|quad]] cards (M7254-7), which plugged into a custom-wired quad-wide hex-high [[system unit]] [[backplane]], for a [[BA11 mounting boxes|BA11]] slide-out mounting box.
+The RK11-D was a re-implementation of the RK11-C on four [[DEC card form factor|quad]] cards (M7254-7), which plugged into a custom-wired 4 slot hex-high [[system unit]] [[backplane]], for a [[BA11 mounting boxes|BA11]] slide-out mounting box.
 It was [[program compatible]] with the RK11-C, except that the RK11-D did not contain the Maintenance Register of the earlier controller. In the RK11-D, the bus location of the MR responds, but according to the engineering drawings, it reads as zero, and written data is ignored.
@@ Line 53: / Line 53: @@
 The RKV11-D is a variant of the RK11-D for the QBUS (the others are all UNIBUS).
-It uses three of the four quad cards of the RK11-D (M7254-6), along with a replacement fourth card (M7268), in a different custom quad-wide quad-high system unit backplane. The M7268 is connected via two pairs of [[flat cable]]s to two dual cards, one of which (M7269) plugs into a QBUS backplane slot, and the other (M993-YA) into the first RK05 drive.
+It uses three of the four quad cards of the RK11-D (M7254-6), along with a replacement fourth card (M7268), in a different custom 4 slot quad-high system unit backplane. The M7268 is connected via two pairs of [[flat cable]]s to two dual cards, one of which (M7269) plugs into a QBUS backplane slot, and the other (M993-YA) into the first RK05 drive.
-It is program compatible with the RK11-D, except that it only supports [[Q16]] QBUS mode when writing data, so the two extended memory bits in the CSR have no effect; they may be read and written, but are not connected to anything.
+It is program compatible with the RK11-D, except that it only supports [[Q16]] QBUS mode when writing data. The two extended memory bits in the CSR have no effect; they may be read and written, but are not connected to anything.
 ==Device registers==
@@ Line 242: / Line 242: @@
 ==External links==
-* [http://toresbe.dreamhosters.com/redirect.php?res=bitsavers&doc=dec/unibus/EK-RK11D-MM-002.pdf EK-RK11D-MM-002, RK11-D Maintenance Manual]
+* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-11-HRKDA-B-D%20RK11D%20and%20RK11-E%20Moving%20Head%20Disk%20Drive%20Controller%20Manual.pdf RK11-D and RK11-E moving head disk drive controller manual] (DEC-11-HRKDA-B-D)
 ==Further reading==
-* ''RKV11-0 disk drive controller user's manual'' (EK-RKV11-0P-001)
+* ''RKV11-D disk drive controller technical manual'' (not available online, but in fiche - EP-RKV11-TM-001)
 [[Category: UNIBUS Storage Controllers]]
 [[Category: QBUS Storage Controllers]]

@@ Line 243: / Line 243: @@
 * [http://toresbe.dreamhosters.com/redirect.php?res=bitsavers&doc=dec/unibus/EK-RK11D-MM-002.pdf EK-RK11D-MM-002, RK11-D Maintenance Manual]
 [[Category: UNIBUS Storage Controllers]]
 [[Category: QBUS Storage Controllers]]

@@ Line 47: / Line 47: @@
 It was used with the [[UNICHANNEL 15 System|UC15 Unichannel]], which used a PDP-11 (usually a [[PDP-11/05]]) acting as a slave to the PDP-15; the RK11-E was plugged into the UNIBUS on the PDP-11.
-It used the two UNIBUS [[parity]] lines for the two extra data bits on the 18-bit PDP-15. The two extra bits were not used by the PDP-11 or its memory, but went straight through the [[MX15-B Memory Multiplexer]], directly to the PDP-15's [[main memory]].
+It used the two [[UNIBUS parity]] lines for the two extra data bits on the 18-bit PDP-15. The two extra bits were not used by the PDP-11 or its memory, but went straight through the [[MX15-B Memory Multiplexer]], directly to the PDP-15's [[main memory]].
 ==RKV11-D==

@@ Line 1: / Line 1: @@
 The '''RK11''' and '''RKV11''' series of controllers for the [[UNIBUS]] and [[QBUS]] are for the earlier RK moving-[[head]] [[magnetic storage|magnetic]] [[disk]] [[drive]]s ([[RK0x disk drive|RK02]]-[[RK05 disk drive|RK05]]), all based on the [[IBM 2315]] drive and pack.
-(The later [[RK06 disk drive|RL06]] and [[RK07 disk drive|RK07]], and their controller, the [[RK611]], are a different drive and pack.)
+(The later [[RK06 disk drive|RK06]] and [[RK07 disk drive|RK07]], and their controller, the [[RK611]], are a different drive and pack.)
 There are several models of the RK11, which are basically identical in their programming interface; differences between them are discussed in the sections on the individual models (below).