C. B. Floor SwitchboardsN 300
C. B. Floor Switchboards
N 300
These switchboards are designed for private installations where no junction lines to a
public exchange are required.
The woodwork is matt polished and the metal fittings copper-bronze finished.
The "eyeball" type indicators are fitted with unbreakable, transparent,
dust-proof covers, and are mounted individually, so that on partially equipped
switchboards additions of one line at a time can readily be made.
The supervisory indicators, mounted on the key shelf, are the compact, totally enclosed
type arranged to give double negative supervision. Hand generator with switching key for
power ringing. Night bell and key, and transmitter cut-out key.
For the operator's use, a micro-telephone is supplied with each switchboard.
| Code No. | Line Circuits | Cord Circuits | Dimensions ins | Weight lbs |
| N300 | 50 | 10 | 51 x 24 x 27 | 218 |
| N301 | 40 | 8 | 51 x 24 x 27 | 200 |
| N302 | 30 | 6 | 51 x 24 x 27 | 185 |
| N303 | 20 | 4 | 51 x 24 x 27 | 167 |
| N320 | 100 | 12 | 51 x 34 x 27 | 298 |
| N321 | 90 | 12 | 51 x 34 x 27 | 289 |
| N322 | 80 | 10 | 51 x 34 x 27 | 277 |
| N323 | 70 | 10 | 51 x 34 x 27 | 268 |
| N326 | 60 | 10 | 51 x 34 x 27 | 259 |
Partially equipped switchboards are wired for the ultimate capacities.
Taken from the Ericsson Telephone Catalogue Edition 26
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