Type OB 6300
Multiple Switchboards
Mechanically restored Jack Indicators
Metallic Circuit
Local Battery System
OB 6300/100 shown pictured to the right.
FRAMEWORK
One position section, polished walnut, with the jack indicator field covered with fibre.
Each section has a multiple capacity of 30 strips each for 20 jacks and for 6 strip of jacks for junction purposes.
EQUIPMENT
1 x COMBINED Jack and indicator for each line.
1 x PAIR OF CORDS and 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 DOUBLE SPEAKING KEY.
1 x DOUBLE RINGING KEY for Hand Generator.
1 x DOUBLE BATTERY RINGING KEY.
1 x RINGING KEY for Power Generator.
1 x
PRESS BUTTON for short circuiting the secondary winding of the induction coil.
1 x
PRESS BUTTON for closing transmitter circuit.
1 x CLEARING INDICATOR for each cord circuit.
1 x PRESS BUTTON to each cord circuit for replacing clearing indicators when both plugs are in use.
PILOT VISUAL INDICATOR for calling.
PILOT VISUAL INDICATOR for clearing.
NIGHT BELL
3 x NIGHT BELL SWITCHES.
RINGING VIBRATOR for supervising the outgoing ringing current.
GENERATOR RH 5080, 5-magnet.
MICROTELEPHONE. RE 4110 (differentially wound Receiver), with cord RS 9502.
TYPE |
OLD TYPE No. |
No. of Metallic ccts |
No. of cord ccts |
Height ins |
Width ins |
Depth ins |
Weight in lbs. |
OB 6300/50 |
982 |
50 |
10 |
60.82 |
23.62 |
29.10 |
154.35 |
OB 6300/100 |
983 |
100 |
15 |
60.82 |
23.62 |
29.60 |
231.52 |
NOTE. The jack indicators are mechanically restored by the action of the plug. The clearing indicators and pilot visual indicators are self-restoring.
Type OB 6300/200
200 LINE SWITCHBOARD
Consisting of:-
2 x 1-position sections CB 6300/100.
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 mat cables for 3 sections and with mat cables for return to the connecting racks of sections Nos. 1 and 2.
Type OB 6300/300
300 LINE SWITCHBOARD
Consisting of:-
3 x 1-position sections OB 6300/100.
Which have an additional equipment of 25 strips of multiple series jacks, each for 2G 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 6300/400
400 LINE SWITCHBOARD
Consisting of:-
4 x 1-position sections CB 6300/100.
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 mat cables for 5 sections and with mat cables for return to the connecting raclcs of sections Nos. 1, 2, 3 and 4.
Type OB 6300/500
500 LINE SWITCHBOARD
Consisting of:-
5 x 1-position sections CB 6300/100.
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 cables for return to the connecting racks of sections Nos. 1, 2, 3, 4 and 5.
Type OB 6300/600
600 LINE SWITCHBOARD
Consisting of:-
6 x 1-position sections CB 6300/100.
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 cables 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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