ERICSSON SWITCHBOARD No. OB 6020


768.jpg (11731 bytes)Type OB 6020
Multiple Switchboard
Manual Restored Indicators
Metallic Circuit
Local Battery System

OB 6020/100 shown

FRAMEWORK

One Position Section. Polished walnut.

EQUIPMENT
1 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 SPEAKING AND RINGING KEY for each cord circuit.
1 RINGING KEY for the Power Generator.
1 RINGING BACK KEY.
1 RINGING VIBRATOR for supervising the outgoing ringing current.
1 CALLING INDICATOR for each line.
1 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 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 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 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 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 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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Last revised: April 29, 2000