This unit can be supplied with initial equipment for as few as 10 lines. Extensions may be added, when desired, up to a total 25 lines. The unit is enclosed in a dust-proof cover and can be mounted on table or wall. A small ringing vibrator is incorporated.
A uniform, 2 digit numbering scheme (20 - 39 and 41 - 45) is provided. Each extension user can dial any other.
Tones
are derived from vibratory convertors. Dial at 33 c/s, ringing & tone
at 27 c/s and busy at 400 c/s.
Each telephone is connected to the unit by means of a twin conductor.
Alternatively,
use can be made of the loud speaking telephone or key-calling set.
Power
Plant
For AC. mains supply up to 250 Volts. A mains unit is available, or alternatively a suitable 26 Volt battery
and automatic charger may be employed.
For D.C. mains supply up to 250 volts. Two suitable 26 volt batteries are used, together with a
charging panel fitted with the necessary instruments. switches and fuses to enable any battery to be charged through a resistor
while the other is supplying the unit.
The Power plant weighs approximately 36lb and has dimensions of 17.5 x 13 x 9 inches.

| CAT No. |
LINE CCT
WIRING |
LINE CCT
EQUIP |
LINK CCT
WIRING |
LINK CCT
EQUIP |
DIMENSIONS
APPROX (INCHES) |
WEIGHT (lbs)
FULLY EQUIPPED |
| PX2110 | 25 | 10 | 4 | 2 | 26 x 24 x 12 | 145 |
| PX2115 | 25 | 15 | 4 | 2 | 26 x 24 x 12 | 145 |
| PX2120 | 25 | 20 | 4 | 3 | 26 x 24 x 12 | 145 |
| PX2125 | 25 | 25 | 4 | 3 | 26 x 24 x 12 | 145 |
GEC
THE RELIANCE TELEPHONE COMPANY LTD
Last revised: 18 September, 2007