DM11 distribution panel - Revision history

Jnc: New cat scheme

2023-02-19T00:26:16Z

New cat scheme

Jnc: better img placement

2022-11-23T14:25:16Z

better img placement

Jnc: +Board locations

2022-11-20T21:54:34Z

+Board locations

Jnc: +manuals

2022-11-20T20:04:25Z

+manuals

Jnc: New cat

2022-08-18T15:39:13Z

New cat

Jnc: /* Line conditioning */ re-arrange imgs

2020-03-09T12:27:50Z

‎Line conditioning: re-arrange imgs

Jnc: +images

2020-03-04T20:28:36Z

+images

Jnc: better img loc

2020-02-01T01:31:21Z

better img loc

Jnc: +M791 card image

2020-01-31T17:49:20Z

+M791 card image

Jnc: /* Line conditioning */ +Image

2020-01-25T00:38:31Z

‎Line conditioning: +Image

← Older revision		Revision as of 00:26, 19 February 2023
Line 103:		Line 103:
	* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-11-HDMBA-A-D%20DM11-BB%20Modem%20Control%20Option%20Manual.pdf DM11-BB modem control option manual], (DEC-11-HDMBA-A-D)		* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-11-HDMBA-A-D%20DM11-BB%20Modem%20Control%20Option%20Manual.pdf DM11-BB modem control option manual], (DEC-11-HDMBA-A-D)

−	[[Category: UNIBUS ~~Serial Interfaces]]~~	+	[[Category: UNIBUS Asynchronous Serial Interfaces]]
−	~~[[Category: DEC~~ Asynchronous Serial Interfaces]]

@@ Line 8: / Line 8: @@
 ==Line conditioning==
 Three broad choice were available for line conditioning:
@@ Line 17: / Line 15: @@
 * Use the DM11-DC (EIA, modem control), each card of which also supported only one line.
-[[Image:M973.jpg|250px|thumb|right|M973 20mA Mate-N-Lok header card]]
+[[Image:M5960.jpg|250px|thumb|right|M5960 TTL to 20mA Level Converter]]
-The DM11-DA included:
+[[Image:M594.jpg|250px|thumb|right|M594 TTL to EIA Level Converter]]The DM11-DA included:
 * M596 - TTL to 20mA Level Converter
 ** The M5960 was a later version of this card
 * M973 - Mate-N-Lok header (4 per M596)
 and in the DM11-DB:
@@ Line 31: / Line 27: @@
 * M594 - TTL to EIA Level Converter
 * W404 - DTR Jumper card (4 per M594)
-* BC01R cables (4 per, probably attached to an M957 or M970 card)
+* BC01R cables (4 per M594, probably attached to an M957 or M970 card)
 Note that these two were both DF11 cards; however, they were plugged into different slots in the DM11 distribution panel backplane from those used by cards used for single lines (below).
@@ Line 39: / Line 33: @@
 The DM11-DC consisted of four M594s and cables, plugged into individual line slots.
-<br clear=all>
+==Board locations==
-==Board locations==
+[[Image:M973.jpg|250px|thumb|right|M973 20mA Mate-N-Lok header card]]
-There were separate slots at the ends of the distribution panel's backplane into which the 4-line cards plugged; a group of 16 slots in the middle could hold the DF11's or DM11-DC's.
+[[Image:M970.jpg|250px|thumb|right|M970 EIA Berg header card]]
 {| class="wikitable"
@@ Line 97: / Line 93: @@
 |}
-The M974 for [[diagnostic]]s; it is removed for normal operation. For level conversion of the control leads, an M594 is used with the DM11-BB (says the documentation; the DM11-DC is probably meant); a W404-A with the DM11-DB; left empty with the DM11-DA. For the data leads, an M973 is used with the DM11-DA; an M970 with the DM11-DB or DM11-DC. In slots 4-5, an M594 is used with the DM11-DB; in slots 22-23, an M596 is used with the DM11-DA.
+The M974 was for [[diagnostic]]s; it was removed for normal operation. For level conversion of the control leads, an M594 is used with the DM11-BB (says the documentation; the DM11-DC is probably meant); a W404-A with the DM11-DB; left empty with the DM11-DA. For the data leads, an M973 is used with the DM11-DA; an M970 with the DM11-DB or DM11-DC. In slots 4-5, an M594 is used with the DM11-DB; in slots 22-23, an M596 is used with the DM11-DA.
 ==Further reading==

@@ Line 35: / Line 35: @@
 [[Image:M970.jpg|250px|thumb|right|M970 EIA Berg header card]]
-Note that these two were both DF11 cards; however, they were plugged into different slots in the DM11 distribution panel backplane from those used by cards used for single lines. (There were separate slots at the ends of the distribution panel's backplane into which the 4-line cards plugged; a group of 16 slots in the middle could hold the DF11's or DM11-DC's.)
+Note that these two were both DF11 cards; however, they were plugged into different slots in the DM11 distribution panel backplane from those used by cards used for single lines (below).
 The DM11-DC consisted of four M594s and cables, plugged into individual line slots.
 ==Further reading==

@@ Line 1: / Line 1: @@
-The '''DM11 distribution panel''' (formally, the '''DM11-AA distribution panel''') was used with the [[DM11 asynchronous serial line interface|DM11]] and early models of the [[DH11 asynchronous serial line interface|DH11]] interfaces, to connect these [[peripheral|interfaces]] to [[asynchronous serial line]]s which used a number of different low-level electrical interface specifications, and connected either to local [[terminal]]s, or to [[modem]]s.
+The '''DM11 distribution panel''' (formally, the '''DM11-AA distribution panel''') was used with the [[DM11 Asynchronous 16-line Single-Speed Multiplexer|DM11]] and early models of the [[DH11 asynchronous serial line interface|DH11]] interfaces, to connect these [[peripheral|interfaces]] to [[asynchronous serial line]]s which used a number of different low-level electrical interface specifications, and connected either to local [[terminal]]s, or to [[modem]]s.
 [[Image:M791.jpg|300px|thumb|right|M791 connector card]]
@@ Line 38: / Line 38: @@
 The DM11-DC consisted of four M594s and cables, plugged into individual line slots.
 [[Category: UNIBUS Serial Interfaces]]
 [[Category: DEC Asynchronous Serial Interfaces]]

← Older revision		Revision as of 15:39, 18 August 2022
Line 40:		Line 40:

	[[Category: UNIBUS Serial Interfaces]]		[[Category: UNIBUS Serial Interfaces]]
		+	[[Category: DEC Asynchronous Serial Interfaces]]

← Older revision		Revision as of 01:31, 1 February 2020
Line 1:		Line 1:
		+	The '''DM11 distribution panel''' (formally, the '''DM11-AA distribution panel''') was used with the [[DM11 asynchronous serial line interface\|DM11]] and early models of the [[DH11 asynchronous serial line interface\|DH11]] interfaces, to connect these [[peripheral\|interfaces]] to [[asynchronous serial line]]s which used a number of different low-level electrical interface specifications, and connected either to local [[terminal]]s, or to [[modem]]s.
		+
	[[Image:M791.jpg\|300px\|thumb\|right\|M791 connector card]]		[[Image:M791.jpg\|300px\|thumb\|right\|M791 connector card]]
−
−	The '''DM11 distribution panel''' (formally, the '''DM11-AA distribution panel''') was used with the [[DM11 asynchronous serial line interface\|DM11]] and early models of the [[DH11 asynchronous serial line interface\|DH11]] interfaces, to connect these [[peripheral\|interfaces]] to [[asynchronous serial line]]s which used a number of different low-level electrical interface specifications, and connected either to local [[terminal]]s, or to [[modem]]s.

	Both of these devices used a custom [[system unit]] [[backplane]], containing multiple cards; one or more [[flat cable]]s connected this, via a [[Berg connector]] on [[DEC card form factor\|single-width]] M791 cards, to the backplane of the separate 5-1/4" high rack-mounted [[DEC card form factor\|dual-height]] distribution panel.		Both of these devices used a custom [[system unit]] [[backplane]], containing multiple cards; one or more [[flat cable]]s connected this, via a [[Berg connector]] on [[DEC card form factor\|single-width]] M791 cards, to the backplane of the separate 5-1/4" high rack-mounted [[DEC card form factor\|dual-height]] distribution panel.

@@ Line 1: / Line 1: @@
 The '''DM11 distribution panel''' (formally, the '''DM11-AA distribution panel''') was used with the [[DM11 asynchronous serial line interface|DM11]] and early models of the [[DH11 asynchronous serial line interface|DH11]] interfaces, to connect these [[peripheral|interfaces]] to [[asynchronous serial line]]s which used a number of different low-level electrical interface specifications, and connected either to local [[terminal]]s, or to [[modem]]s.
-Both of these devices used a custom [[system unit]] [[backplane]], containing multiple cards; one or more [[flat cable]]s connected this, via [[DEC card form factor|single-width]] M791 cards, to the backplane of the separate 5-1/4" high rack-mounted [[DEC card form factor|dual-height]] distribution panel.
+Both of these devices used a custom [[system unit]] [[backplane]], containing multiple cards; one or more [[flat cable]]s connected this, via a [[Berg connector]] on [[DEC card form factor|single-width]] M791 cards, to the backplane of the separate 5-1/4" high rack-mounted [[DEC card form factor|dual-height]] distribution panel.
 Modular 'line conditioning' units were installed in the distribution panel's backplane, to allow support of either [[20mA current loop serial line interface|20mA]] serial lines (local only), or [[EIA RS-232 serial line interface|EIA RS-232]] serial lines (local or modems - modems usually required a [[DM11-BB Modem Control Option]] as well as the basic asynchronous serial line interface).

← Older revision		Revision as of 00:38, 25 January 2020
Line 6:		Line 6:

	==Line conditioning==		==Line conditioning==
		+
		+	[[Image:M594.jpg\|250px\|thumb\|right\|M594 TTL to EIA Level Converter]]

	Three broad choice were available for line conditioning:		Three broad choice were available for line conditioning: