DZ11 asynchronous serial line interface - Revision history

Jnc: /* External links */ Bitsavers has reorganized a bit

2026-10-05T19:21:25Z

External links: Bitsavers has reorganized a bit

← Older revision		Revision as of 19:21, 5 October 2026
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	==External links==		==External links==

	* [http://www.bitsavers.org/pdf/dec/unibus/EK-DZ110-UG-002_DZ11_Users_Guide_Feb79.pdf DZ11 user's guide] (EK-DZ110-UG-002)		* [http://www.bitsavers.org/pdf/dec/unibus/DZ11/EK-DZ110-UG-002_DZ11_Users_Guide_Feb79.pdf DZ11 user's guide] (EK-DZ110-UG-002)
	* [http://www.bitsavers.org/pdf/dec/unibus/EK-DZ110-TM-002_DZ11_Asynchronous_Multiplexer_Technical_Manual_Oct78.pdf DZ11 asynchronous multiplexer technical manual] (EK-DZ110-TM-002)		* [http://www.bitsavers.org/pdf/dec/unibus/DZ11/EK-DZ110-TM-002_DZ11_Asynchronous_Multiplexer_Technical_Manual_Oct78.pdf DZ11 asynchronous multiplexer technical manual] (EK-DZ110-TM-002)
	* [http://www.bitsavers.org/pdf/dec/unibus/MP00132_DZ11_RevB_Engineering_Drawings_May78.pdf DZ11-A,B,E (EIA) Field Maintenance Print Set] (MP00132)		* [http://www.bitsavers.org/pdf/dec/unibus/DZ11/MP00132_DZ11_RevB_Engineering_Drawings_May78.pdf DZ11-A,B,E (EIA) Field Maintenance Print Set] (MP00132)

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

Jnc: New cat scheme

2023-02-19T00:26:56Z

New cat scheme

← Older revision		Revision as of 00:26, 19 February 2023
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	* [http://www.bitsavers.org/pdf/dec/unibus/MP00132_DZ11_RevB_Engineering_Drawings_May78.pdf DZ11-A,B,E (EIA) Field Maintenance Print Set] (MP00132)		* [http://www.bitsavers.org/pdf/dec/unibus/MP00132_DZ11_RevB_Engineering_Drawings_May78.pdf DZ11-A,B,E (EIA) Field Maintenance Print Set] (MP00132)

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

Jnc: New cat

2022-08-17T12:18:35Z

New cat

← Older revision		Revision as of 12:18, 17 August 2022
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	[[Category: UNIBUS Serial Interfaces]]		[[Category: UNIBUS Serial Interfaces]]
			[[Category: DEC Asynchronous Serial Interfaces]]

Jnc: 6 config variants

2022-01-28T20:30:11Z

6 config variants

← Older revision		Revision as of 20:30, 28 January 2022
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	[[Image:M7819.jpg\|thumb\|right\|250px\|M7819 EIA DZ11 card]]		[[Image:M7819.jpg\|thumb\|right\|250px\|M7819 EIA DZ11 card]]

	The '''DZ11''' was a [[UNIBUS]] 8 port [[asynchronous serial line]] mux card for [[Digital Equipment Corporation\|DEC]] computers. It ~~used~~ used [[programmed I/O]], and thus could present a considerable load on the [[Central Processing Unit\|CPU]] when running a high speed line. A 64-entry [[First-In First-Out buffer\|FIFO buffer]] silo was provided on the input side.		The '''DZ11''' was a [[UNIBUS]] 8 port [[asynchronous serial line]] mux card for [[Digital Equipment Corporation\|DEC]] computers. It used [[programmed I/O]], and thus could present a considerable load on the [[Central Processing Unit\|CPU]] when running a high speed line, using [[interrupt]]s. A 64-entry [[First-In First-Out buffer\|FIFO buffer]] silo was provided on the input side.

	Both [[EIA RS-232 serial line interface\|EIA]] and [[20mA current loop serial line interface\|20mA]] physical layers were supported; the EIA model could operate with [[full-duplex]] [[modem]]s. It provided program-set [[baud rate]]s (up to 9600 baud), but not split speed. [[Break]] could be detected or generated on each line.		Both [[EIA RS-232 serial line interface\|EIA]] and [[20mA current loop serial line interface\|20mA]] physical layers were supported; the EIA model could operate with [[full-duplex]] [[modem]]s. It provided program-set [[baud rate]]s (up to 9600 baud), but not split speed. [[Break]] could be detected or generated on each line.

			A single EIA DZ11 with an EIA-specific 16-line [[distribution panel]] was denominated as a DZ11-A; an EIA board by itself was a DZ11-B, and a distribution panel with two boards is a DZ11-E. Similarly, a single 20mA DZ11 with a 20mA-specific 16-line [[distribution panel]] was denominated as a DZ11-C, the 20mA board by itself was a DZ11-D, and a distribution panel with two boards is a DZ11-F.

	==Implementation==		==Implementation==
Line 9:		Line 11:
	Physically, it was a [[DEC card form factor\|hex]] card, which plugged into an [[Small Peripheral Controller\|SPC]] [[backplane]] slot. The EIA version was the M7819, and the 20mA one was the M7814.		Physically, it was a [[DEC card form factor\|hex]] card, which plugged into an [[Small Peripheral Controller\|SPC]] [[backplane]] slot. The EIA version was the M7819, and the 20mA one was the M7814.

	On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card via a [[static filter]] to an H317-E EIA [[distribution panel]] (for ID purposes, the [[DEC part number]] for the [[printed circuit board\|PCB]] of ~~that~~ is 54-11928). The H317-E held 16 [[EIA RS-232 serial line interface#Connectors\|DB25 male connectors]] (DB-25P) wired as DTEs, enough for two DZ11 cards.		On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card via a [[static filter]] to an H317-E EIA distribution panel (for ID purposes, the [[DEC part number]] for the [[printed circuit board\|PCB]] of the H317-E is 54-11928). The H317-E held 16 [[EIA RS-232 serial line interface#Connectors\|DB25 male connectors]] (DB-25P) wired as DTEs, enough for two DZ11 cards.

	Accessories for the M7819 EIA version are:		Accessories for the M7819 EIA version are:

Jnc: /* External links */ +FMPS, manuals

2022-01-28T16:21:46Z

External links: +FMPS, manuals

← Older revision		Revision as of 16:21, 28 January 2022
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	==Further reading==		==Further reading==

	* ''DZ11 ~~User Guide~~'', EK-DZ11-UG-002		* ''DZ11-C, D, F (20mA) Field Maintenance Print Set'', (MP00253)
	* ''DZ11 ~~Maintenance Manual'',~~ EK-DZ11-~~MM-001~~
			==External links==

			* [http://www.bitsavers.org/pdf/dec/unibus/EK-DZ110-UG-002_DZ11_Users_Guide_Feb79.pdf DZ11 user's guide] (EK-DZ110-UG-002)
			* [http://www.bitsavers.org/pdf/dec/unibus/EK-DZ110-TM-002_DZ11_Asynchronous_Multiplexer_Technical_Manual_Oct78.pdf DZ11 asynchronous multiplexer technical manual] (EK-DZ110-TM-002)
			* [http://www.bitsavers.org/pdf/dec/unibus/MP00132_DZ11_RevB_Engineering_Drawings_May78.pdf DZ11-A,B,E (EIA) Field Maintenance Print Set] (MP00132)

	[[Category: UNIBUS Serial Interfaces]]		[[Category: UNIBUS Serial Interfaces]]

Jnc: /* Implementation */ bah, typo

2021-04-04T15:27:13Z

Implementation: bah, typo

← Older revision		Revision as of 15:27, 4 April 2021
Line 9:		Line 9:
	Physically, it was a [[DEC card form factor\|hex]] card, which plugged into an [[Small Peripheral Controller\|SPC]] [[backplane]] slot. The EIA version was the M7819, and the 20mA one was the M7814.		Physically, it was a [[DEC card form factor\|hex]] card, which plugged into an [[Small Peripheral Controller\|SPC]] [[backplane]] slot. The EIA version was the M7819, and the 20mA one was the M7814.

	On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card via a [[static filter]] to an H317-E EIA [[distribution panel]] (for ID purposes, the [[DEC part number]] for the [[printed circuit board\|PCB]] of that is 54-~~11828~~). The H317-E held 16 [[EIA RS-232 serial line interface#Connectors\|DB25 male connectors]] (DB-25P) wired as DTEs, enough for two DZ11 cards.		On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card via a [[static filter]] to an H317-E EIA [[distribution panel]] (for ID purposes, the [[DEC part number]] for the [[printed circuit board\|PCB]] of that is 54-11928). The H317-E held 16 [[EIA RS-232 serial line interface#Connectors\|DB25 male connectors]] (DB-25P) wired as DTEs, enough for two DZ11 cards.

	Accessories for the M7819 EIA version are:		Accessories for the M7819 EIA version are:

Jnc: /* Implementation */ PCB part no

2021-04-04T15:23:47Z

Implementation: PCB part no

← Older revision		Revision as of 15:23, 4 April 2021
Line 8:		Line 8:

	Physically, it was a [[DEC card form factor\|hex]] card, which plugged into an [[Small Peripheral Controller\|SPC]] [[backplane]] slot. The EIA version was the M7819, and the 20mA one was the M7814.		Physically, it was a [[DEC card form factor\|hex]] card, which plugged into an [[Small Peripheral Controller\|SPC]] [[backplane]] slot. The EIA version was the M7819, and the 20mA one was the M7814.
	On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card via a [[static filter]] to an H317-E EIA distribution panel, holding 16 [[EIA RS-232 serial line interface#Connectors\|DB25 male connectors]] (DB-25P) wired as DTEs, enough for two DZ11 cards.

	Accessories for the EIA version are:		On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card via a [[static filter]] to an H317-E EIA [[distribution panel]] (for ID purposes, the [[DEC part number]] for the [[printed circuit board\|PCB]] of that is 54-11828). The H317-E held 16 [[EIA RS-232 serial line interface#Connectors\|DB25 male connectors]] (DB-25P) wired as DTEs, enough for two DZ11 cards.

			Accessories for the M7819 EIA version are:

	* BC05W-15 50 conductor signal cable		* BC05W-15 50 conductor signal cable
Line 24:		Line 25:
	The later H3006 distribution panel for the EIA version was part of DEC's modular back-panel system.		The later H3006 distribution panel for the EIA version was part of DEC's modular back-panel system.

	For the 20mA, substitute the:		For the 20mA M7814, substitute the:

	* BC08S-15 40 conductor signal cable		* BC08S-15 40 conductor signal cable

Jnc: Add registers

2021-01-02T16:55:30Z

Add registers

@@ Line 1: / Line 1: @@
-[[Image:M7819.jpg|thumb|right|250px|M7819]]
+[[Image:M7819.jpg|thumb|right|250px|M7819 EIA DZ11 card]]
-The '''DZ11''' was a [[UNIBUS]] 8 port [[asynchronous serial line]] mux card for [[Digital Equipment Corporation|DEC]] computers.
+The '''DZ11''' was a [[UNIBUS]] 8 port [[asynchronous serial line]] mux card for [[Digital Equipment Corporation|DEC]] computers. It used used [[programmed I/O]], and thus could present a considerable load on the [[Central Processing Unit|CPU]] when running a high speed line. A 64-entry [[First-In First-Out buffer|FIFO buffer]] silo was provided on the input side.
-It was a [[DEC card form factor|hex]] card, which plugged into an [[Small Peripheral Controller|SPC]] [[backplane]] slot, and used [[programmed I/O]]. The [[EIA RS-232 serial line interface|EIA]] version was the M7819, and the [[20mA current loop serial line interface|20mA]] was the M7814. The EIA model can operate with [[modem]]s.
+Both [[EIA RS-232 serial line interface|EIA]] and [[20mA current loop serial line interface|20mA]] physical layers were supported; the EIA model could operate with [[full-duplex]] [[modem]]s. It provided program-set [[baud rate]]s (up to 9600 baud), but not split speed. [[Break]] could be detected or generated on each line.
-On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card via a static fiter to an EIA distribution panel holding 16 DB25 connectors, enough for two DZ11 cards.
+==Implementation==
 Accessories for the EIA version are:
-* BC05W-5 50 conductor signal cable
+* BC05W-15 50 conductor signal cable
 * H7004C Static Filter
 * BC06L-0J 50 conductor signal cable
@@ Line 16: / Line 19: @@
 * H325 test connector (single line)
 * H3271 staggered test connector
 For the 20mA, substitute the:
@@ Line 25: / Line 32: @@
 * H3190 staggered test connector.
-[[Image:H3006Panel.jpg|thumb|left|200px|H3006]]
+==Device registers==
-Also, the later H3006 distribution panel for the EIA version was part of DEC's modular back-panel system.
+* ''DZ11 User Guide'', EK-DZ11-UG-002
 [[Category: UNIBUS Serial Interfaces]]

Jnc: + static filters

2020-08-08T14:25:41Z

+ static filters

← Older revision		Revision as of 14:25, 8 August 2020
Line 5:		Line 5:
	It was a [[DEC card form factor\|hex]] card, which plugged into an [[Small Peripheral Controller\|SPC]] [[backplane]] slot, and used [[programmed I/O]]. The [[EIA RS-232 serial line interface\|EIA]] version was the M7819, and the [[20mA current loop serial line interface\|20mA]] was the M7814. The EIA model can operate with [[modem]]s.		It was a [[DEC card form factor\|hex]] card, which plugged into an [[Small Peripheral Controller\|SPC]] [[backplane]] slot, and used [[programmed I/O]]. The [[EIA RS-232 serial line interface\|EIA]] version was the M7819, and the [[20mA current loop serial line interface\|20mA]] was the M7814. The EIA model can operate with [[modem]]s.

	On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card to an EIA distribution panel holding 16 DB25 connectors, enough for two DZ11 cards.		On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card via a static fiter to an EIA distribution panel holding 16 DB25 connectors, enough for two DZ11 cards.

	Accessories for the EIA version are:		Accessories for the EIA version are:

			* BC05W-5 50 conductor signal cable
			* H7004C Static Filter
			* BC06L-0J 50 conductor signal cable
			* H317-E EIA distribution panel
	* Cable Box assembly		* Cable Box assembly
	* H317-E EIA distribution panel
	* BC05W 50 conductor signal cable
	* H325 test connector (single line)		* H325 test connector (single line)
	* H3271 staggered test connector		* H3271 staggered test connector
Line 17:		Line 19:
	For the 20mA, substitute the:		For the 20mA, substitute the:

			* BC08S-15 40 conductor signal cable
			* H7004B Static Filter
			* BC06K-0J 40 conductor signal cable
	* H317-F 20mA distribution panel		* H317-F 20mA distribution panel
	* BC08S 40 conductor signal cable
	* H3190 staggered test connector.		* H3190 staggered test connector.

Jnc: Add later H3006 dist panel

2019-02-06T02:39:18Z

Add later H3006 dist panel

← Older revision		Revision as of 02:39, 6 February 2019
Line 1:		Line 1:
	[[Image:M7819.jpg\|thumb\|right\|~~200px~~\|M7819]]		[[Image:M7819.jpg\|thumb\|right\|250px\|M7819]]

	The '''DZ11''' was a [[UNIBUS]] 8 port [[asynchronous serial line]] mux card for [[Digital Equipment Corporation\|DEC]] computers.		The '''DZ11''' was a [[UNIBUS]] 8 port [[asynchronous serial line]] mux card for [[Digital Equipment Corporation\|DEC]] computers.
Line 7:		Line 7:
	On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card to an EIA distribution panel holding 16 DB25 connectors, enough for two DZ11 cards.		On the M7819, a [[flat cable]] led from a [[Berg connector]] on the card to an EIA distribution panel holding 16 DB25 connectors, enough for two DZ11 cards.

	~~Common accessories~~ for the EIA version are:		Accessories for the EIA version are:

	* Cable Box assembly		* Cable Box assembly
Line 20:		Line 20:
	* BC08S 40 conductor signal cable		* BC08S 40 conductor signal cable
	* H3190 staggered test connector.		* H3190 staggered test connector.

			[[Image:H3006Panel.jpg\|thumb\|left\|200px\|H3006]]

			Also, the later H3006 distribution panel for the EIA version was part of DEC's modular back-panel system.

	[[Category: UNIBUS Serial Interfaces]]		[[Category: UNIBUS Serial Interfaces]]