CMS:Panel Switch: Difference between revisions - The Telecommunications Inventory Wiki

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[[File:Panel Switch.jpg|thumb|The Panel switch with the OutGoing Trunk (OGT) test desk on the left and various frames on the right]]

The '''[[wikipedia:Panel_switch|Panel Switch]]''' ~~is from~~ the Rainier/Parkway exchange in Seattle~~. Its assembly was started in 1921 and it entered service on March 3,~~ 1923. The museum's Panel switch is an ~~assembly~~ of a small fraction of components of the original switch, which was around eight times larger.

The '''[[wikipedia:Panel_switch|Panel Switch]]''' was in service at the Rainier/Parkway exchange in Seattle from 1923-1974. The museum's Panel switch installation is an collection of a small fraction of components of the original switch, which was around eight times larger.

== History ==

The Panel switch was installed in the Rainier/Parkway central office from 1921-1923 at the cost of approximately $294,000 ({{Inflation|US|start_year=1923|value=294,000|fmt=eq}}). On March 3, 1923, its opening day, it had approximately 4,000 lines connected and 36,199 originating calls were made from the switch.

The Panel switch was installed in the Rainier/Parkway central office from 1921-1923 at the cost of approximately $294,000 ({{Inflation|US|start_year=1923|value=294,000|fmt=eq}}). Starting at 12 AM on March 3, 1923, it provided the first dial service to Seattle. On its opening day, it had approximately 4,000 lines connected and 36,199 originating calls were made from the switch.

In 1974 the Panel switch was decommissioned. Most of it was removed and scrapped, but the remaining frames were left in place because its wiring was mixed with other wiring that was still in use and the central office engineers were worried that severing the wires would cause a service outage.

In 1986 the remaining frames were transferred to the [[CMS:Connections Museum|Connections Museum]].

[[File:Parkway 1965 layout.jpg|thumb|The Panel switch's layout in the Parkway Central Office in 1965. Pink sections denote the components of the Panel switch currently installed in the museum.]]

== Configuration ==

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=== Museum Configuration ===

'''Number of Line Finder Frames:''' maximum of 6 old-style 300-point

'''Number of District Frames:''' ?

@@ Line 1: / Line 1: @@
 [[File:Panel Switch.jpg|thumb|The Panel switch with the OutGoing Trunk (OGT) test desk on the left and various frames on the right]]
-The '''[[wikipedia:Panel_switch|Panel Switch]]''' is from the Rainier/Parkway exchange in Seattle. Its assembly was started in 1921 and it entered service on March 3, 1923. The museum's Panel switch is an assembly of a small fraction of components of the original switch, which was around eight times larger.
+The '''[[wikipedia:Panel_switch|Panel Switch]]''' was in service at the Rainier/Parkway exchange in Seattle from 1923-1974. The museum's Panel switch installation is an collection of a small fraction of components of the original switch, which was around eight times larger.
 == History ==
-The Panel switch was installed in the Rainier/Parkway central office from 1921-1923 at the cost of approximately $294,000 ({{Inflation|US|start_year=1923|value=294,000|fmt=eq}}). On March 3, 1923, its opening day, it had approximately 4,000 lines connected and 36,199 originating calls were made from the switch.
+The Panel switch was installed in the Rainier/Parkway central office from 1921-1923 at the cost of approximately $294,000 ({{Inflation|US|start_year=1923|value=294,000|fmt=eq}}). Starting at 12 AM on March 3, 1923, it provided the first dial service to Seattle. On its opening day, it had approximately 4,000 lines connected and 36,199 originating calls were made from the switch.
 In 1974 the Panel switch was decommissioned. Most of it was removed and scrapped, but the remaining frames were left in place because its wiring was mixed with other wiring that was still in use and the central office engineers were worried that severing the wires would cause a service outage.
 In 1986 the remaining frames were transferred to the [[CMS:Connections Museum|Connections Museum]].
+[[File:Parkway 1965 layout.jpg|thumb|The Panel switch's layout in the Parkway Central Office in 1965. Pink sections denote the components of the Panel switch currently installed in the museum.]]
 == Configuration ==
@@ Line 46: / Line 47: @@
 === Museum Configuration ===
 '''Number of Line Finder Frames:''' maximum of 6 old-style 300-point
 '''Number of District Frames:''' ?