Type OD 1250
Floor Pattern Switchboards
Common Battery System
FRAMEWORK
 Woodwork, polished walnut with the jack field covered with fibre, legs enamelled cast iron.OD 1250/6+24
is shown pictured to the right.
EQUIPMENT
1 x JACK for each line.
1 x NIGHT SERVICE CORD for each Exchange Line with a plug, at each end.
1 x PAIR OF CORDS and 3-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 BACK KEY.
1 x RINGING KEY for Power Generator.
1 x CALLING INDICATOR for each line.
1 x VISUAL CLEARING INDICATOR together with relay for each cord circuit.
NIGHT BELL.
NIGHT BELL SWITCH.
GENERATOR. RH 5050, 5-magnet.
MICROTELEPHONE. RE 5059, with cord RS 7021.
The visual clearing indicators are of the self-restoring type.
These boards are not usually kept in stock.
|
TYPE |
No. of Exch lines |
No. of Extn Ccts |
No. of cord ccts |
Height ins |
Width ins |
Depth ins |
Weight in lbs. |
|
OD 1250/5+18 |
5 |
15 |
6 |
59.10 |
17.70 |
25.20 |
147.75 |
|
OD 1250/6+24 |
6 |
24 |
7 |
59.10 |
17.70 |
25.20 |
149.95 |
|
OD 1250/5+30 |
5 |
30 |
6 |
60.85 |
22.00 |
25.20 |
172.6O |
|
OD 1250/7+4 |
7 |
40 |
10 |
60.85 |
22.00 |
25.20 |
180.80 |
Taken from the Ericsson Telephone Catalogue 1914
|
