Type OB 6020
Multiple Switchboard
Manual Restored Indicators
Metallic Circuit
Local Battery System OB 6020/100 shown pictured to the right.
FRAMEWORK
One Position Section. Polished walnut.
EQUIPMENT
1 x LOCAL JACK, for each line, mounted in rows of 10 in ebonite strips (see table for capacity). 20 MULTIPLE JACKS each with 20 jacks can be mounted. 1 PAIR OF CORDS with 2-point plugs (see table for number of cord circuits on each board).
1 x SPEAKING AND RINGING KEY for each cord circuit.
1 x RINGING KEY for the Power Generator.
1 x RINGING BACK KEY.
1 x RINGING VIBRATOR for supervising the outgoing ringing current.
1 x CALLING INDICATOR for each line.
1 x CLEARING INDICATOR for each cord circuit.
NIGHT BELL.
NIGHT BELL SWITCH.
GENERATOR. RH 5080, 5-magnet.
MICROTELEPHONE. RE 5110 (differentially wound Receiver), with cord RS 9501.
|
TYPE |
No. of Metallic ccts |
No. of cord ccts |
Height ins |
Width ins |
Depth ins |
Weight in lbs. |
|
OB 6020/30 |
30 |
6 |
60.83 |
23.62 |
29.61 |
136.71 |
|
OB 6020/40 |
40 |
8 |
60.83 |
23.62 |
29.61 |
145.53 |
|
OB 6020/50 |
50 |
10 |
60.83 |
23.62 |
29.61 |
154.35 |
|
OB 6020/100 |
100 |
12 |
60.83 |
23.62 |
29.61 |
231.32 |
Type OB 6020/200
200 LINE SWITCHBOARD
Consisting of :-
2 x Position sections CB 6020/100
Which have an additional equipment of 10 strips of multiple series jacks, each for 20 lines, arranged in 4 panel multiples and cabled with 60 wire 0.6 m/m wool insulated inat cables for 3 sections and with mat cables for return to the connecting ranks of sections Nos. 1 and 2.
Type OB 6020/300
300 LINE SWITCHBOARD
Consisting of:-
3 x 1-position sections OB 6020/100.
Which have an additional equipment of 25 strips of multiple series jacks, each for 20 lines, arranged in 4 panel multiples and cabled with 60 wire 0.6 m/m wool insulated mat cables for 4 sections and with mat cables for return to the connecting racks of sections Nos. 1, 2 and 3.
Type OB 6020/400
400 LINE SWITCHBOARD
Consisting of:-
4 x 1-position sections CB 6020/100.
Which have an additional equipment of 40 strips of multiple series jacks, each for 20 lines, arranged in 4 panel multiples and cabled with 60 wire 0.6 m/m wool insulated inat cables for 5 sections and with mat cables for return to the connecting racks of sections Nos. 1, 2, 3 and 4.
Type OB 6020/500
500 LINE SWITCHBOARD
Consisting of:-
5 x 1-position sections OB 6020/100.
Which have an additional equipment of 65 strips of multiple series jacks, each for 20 lines, arranged in 4 panel multiples and cabled with 60 wire 0.6 m/m wool insulated mat cables for 6 sections and with mat cable for return to the connecting racks of sections Nos. 1, 2, 3, 4 and 5.
Type OB 6020/600
600 LINE SWITCHBOARD
Consisting of:-
5 x 1-position sections OB 6020/100.
Which have an additional equipment of 90 strips of multiple series jacks each for 20 lines, arranged in 4 panel multiples and cabled with 60 wire 0.6 m/m wool insulated mat cable for 7 sections and with mat cable for return to the connecting racks of sections Nos. 1, 2, 3, 4, 5 and 6.
Taken from the Ericsson Telephone Catalogue 1914
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