Remote Switching Control Bus - Revision history

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2025-12-17T11:13:50Z

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2025-12-14T19:06:21Z

"also known as DEC Power Bus" added

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2022-06-15T17:50:32Z

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2018-09-20T19:56:41Z

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2018-09-20T17:48:38Z

clarify

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2018-09-20T15:24:51Z

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2018-09-20T01:08:39Z

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The '''Remote Switching Control Bus''' was a power control [[bus]] used across many [[Digital Equipment Corporation|DEC]] product lines to allow remote control of power. It contained three lines: a [[ground return]], a 'power on', and an 'emergency shutdown'. (Not all devices used the last.)

The bus was connected using 3-pin AMP MATE-N-LOK connectors: all units used a male shell (with female sockets); all the cables (normally 3-conductor, #22 gauge, but 2-conductor is seen) had female shells (with male pins), on both ends.

The male shell (housing) was a 1-480304-0, and took 61173-1 socket; the female shell was a 1-480305-0, and took 61174-1 or 61118-4 pins.

[[Category: DEC Hardware]]

← Older revision		Revision as of 11:13, 17 December 2025
Line 1:		Line 1:
−	The '''Remote Switching Control Bus''' (also known as '''DEC Power Bus''') was a power control [[bus]] used across many [[Digital Equipment Corporation\|DEC]] product lines to allow remote control of power. It contained three lines: a [[ground return]], a 'power on', and an 'emergency shutdown'. (Not all devices used the last, e.g. the illustrated example below.)	+	The '''Remote Switching Control Bus''' (also known as the '''DEC Power Bus''') was a power control [[bus]] used across many [[Digital Equipment Corporation\|DEC]] product lines to allow remote control of power. It contained three lines: a [[ground return]], a 'power on', and an 'emergency shutdown'. (Not all devices used the last, e.g. the illustrated example below.)

	[[Image:PwrControlBusConn.jpg\|150px\|thumb\|right\|Cable connector]]		[[Image:PwrControlBusConn.jpg\|150px\|thumb\|right\|Cable connector]]

← Older revision		Revision as of 19:06, 14 December 2025
Line 1:		Line 1:
−	The '''Remote Switching Control Bus''' was a power control [[bus]] used across many [[Digital Equipment Corporation\|DEC]] product lines to allow remote control of power. It contained three lines: a [[ground return]], a 'power on', and an 'emergency shutdown'. (Not all devices used the last, e.g. the illustrated example below.)	+	The '''Remote Switching Control Bus''' (also known as '''DEC Power Bus''') was a power control [[bus]] used across many [[Digital Equipment Corporation\|DEC]] product lines to allow remote control of power. It contained three lines: a [[ground return]], a 'power on', and an 'emergency shutdown'. (Not all devices used the last, e.g. the illustrated example below.)

	[[Image:PwrControlBusConn.jpg\|150px\|thumb\|right\|Cable connector]]		[[Image:PwrControlBusConn.jpg\|150px\|thumb\|right\|Cable connector]]

← Older revision		Revision as of 17:50, 15 June 2022
Line 9:		Line 9:
	AMP has been bought by TE Connectivity, but these MATE-N-LOK connectors are still in production, and available from the usual suppliers.		AMP has been bought by TE Connectivity, but these MATE-N-LOK connectors are still in production, and available from the usual suppliers.

−	[[Category: DEC ~~Hardware~~]]	+	[[Category: DEC Electrical]]

@@ Line 5: / Line 5: @@
 The bus was connected using 3-pin AMP MATE-N-LOK connectors: all units with a remote control input used a male shell (with female sockets); all the cables (normally 3-conductor, #22 gauge, but 2-conductor is seen, as on the right) had female shells (with male pins), on both ends.
-The male shell (housing) was a 1-480304-0, and took 61173-1 sockets (i.e. female pins); the female shell was a 1-480305-0, and took 61174-1 or 61118-4 male pins. (There are a large number of different pin options: 30-22, 24-18, and 20-14 gauge; tin and gold plated; and brass and phosphor-bronze material. The part numbers given are for tinned brass, 30-22 gauge.)
+The male shell (housing) was a 1-480304-0, and took 61173-1 sockets (i.e. female pins); the female shell was a 1-480305-0, and took 61174-1 male pins. (There are a large number of different pin options: 30-22, 24-18, and 20-14 gauge; tin and gold plated; and brass and phosphor-bronze material. The part numbers given are for tinned brass, 30-22 gauge.)
 AMP has been bought by TE Connectivity, but these MATE-N-LOK connectors are still in production, and available from the usual suppliers.
 [[Category: DEC Hardware]]

@@ Line 3: / Line 3: @@
 [[Image:PwrControlBusConn.jpg|150px|thumb|right|Cable connector]]
-The bus was connected using 3-pin AMP MATE-N-LOK connectors: all units with a remote control input used a male shell (with female sockets, i.e. female pins); all the cables (normally 3-conductor, #22 gauge, but 2-conductor is seen, as to the right) had female shells (with male pins), on both ends.
+The bus was connected using 3-pin AMP MATE-N-LOK connectors: all units with a remote control input used a male shell (with female sockets); all the cables (normally 3-conductor, #22 gauge, but 2-conductor is seen, as on the right) had female shells (with male pins), on both ends.
-The male shell (housing) was a 1-480304-0, and took 61173-1 sockets; the female shell was a 1-480305-0, and took 61174-1 or 61118-4 pins. (There are a large number of different pin options: 30-22, 24-18, and 20-14 gauge; tin and gold plated; and brass and phosphor-bronze material. The part numbers given are for tinned brass, 30-22 gauge.)
+The male shell (housing) was a 1-480304-0, and took 61173-1 sockets (i.e. female pins); the female shell was a 1-480305-0, and took 61174-1 or 61118-4 male pins. (There are a large number of different pin options: 30-22, 24-18, and 20-14 gauge; tin and gold plated; and brass and phosphor-bronze material. The part numbers given are for tinned brass, 30-22 gauge.)
 AMP has been bought by TE Connectivity, but these MATE-N-LOK connectors are still in production, and available from the usual suppliers.
 [[Category: DEC Hardware]]

@@ Line 1: / Line 1: @@
-The '''Remote Switching Control Bus''' was a power control [[bus]] used across many [[Digital Equipment Corporation|DEC]] product lines to allow remote control of power. It contained three lines: a [[ground return]], a 'power on', and an 'emergency shutdown'. (Not all devices used the last.)
+The '''Remote Switching Control Bus''' was a power control [[bus]] used across many [[Digital Equipment Corporation|DEC]] product lines to allow remote control of power. It contained three lines: a [[ground return]], a 'power on', and an 'emergency shutdown'. (Not all devices used the last, e.g. the illustrated example below.)
-The bus was connected using 3-pin AMP MATE-N-LOK connectors: all units used a male shell (with female sockets); all the cables (normally 3-conductor, #22 gauge, but 2-conductor is seen) had female shells (with male pins), on both ends.
+[[Image:PwrControlBusConn.jpg|150px|thumb|right|Cable connector]]
-The male shell (housing) was a 1-480304-0, and took 61173-1 socket; the female shell was a 1-480305-0, and took 61174-1 or 61118-4 pins.
+The bus was connected using 3-pin AMP MATE-N-LOK connectors: all units with a remote control input used a male shell (with female sockets, i.e. female pins); all the cables (normally 3-conductor, #22 gauge, but 2-conductor is seen, as to the right) had female shells (with male pins), on both ends.
 [[Category: DEC Hardware]]