SPECIFICATION
▶ Purpose and use
The KT-TA312/PT (TA-312/PT st.) is a two-wire. Battery-operated field
telephones it may be used in a simple point-to point
voice frequency (vf) wire communication link any
two-wire rundown subscriber position of a telephone
communication system.
▶ Technical Character
▷ Voltage requirements : 3 volts D.C. (BA-30)
▷ Frequency range : 300∼3,200 Hz
▷ Signaling
▷ Voltage requirements : 3 volts D.C. (BA-30)
▷ Frequency range : 300∼3,200 Hz
▷ Signaling
Frequency -----------20 Hz
Voltage ------------- 90∼100 volts
▷Station-to-station
▷Net Weight : 4.35 Kg
Wire description and type or gage | Maximum distance (miles) |
Field Wire WD-1/TT | Wet ------- 14. Dry ----- 22 |
Field Wire WD-14/TT | Loaded ---- 22. Dry ----- 14 |
Spiral-for cable CX-1065/G | 29 |
Lead-covered cable, 19-gage | 30 |
Open-wire lines, W-2 #14 AWG copper | 230 |
Open-Wire lines, W-74 #12 AWG copper | 520 |
▶ Parts Assy List
No. | Parts No. | Description |
1 | 5965-669-9145 | Handset (H-60/PT) |
2 | 5915-506-1469 | Generator (G-42/PT) |
3 | 5805-506-1145 | Net Work (CU-350B/PT) |
4 | 5805-382-6857 | Buzzer (BZ-23/PT) |
5 | 5805-392-7726 | Harness Cable |
6 | 5940-545-8187 | Crank Hand |
7 | 5999-502-9486 | Terminal Panel |
8 | 5995-665-7390 | Contact Assy |
9 | 5930-504-9486 | Cord Assy (CX-2151/U) |
10 | 5995-665-7390 | PTT Switch (SA-129/PT) |
11 | 5930-301-5866 | Spring Helical Torsion |
12 | 5805-301-3865 | Spring Helical Torsion |
13 | 5930-399-7773 | Selector Rotary Switch |
14 | 5930-173-8358 | Switch Cover |
15 | | Pranger Assy |
16 | 5930-566-1639 | Ext-int Rotary Switch |
17 | 5965-549-0220 | Earphone Element (TA-235/PT) |
18 | 5965-925-5112 | Microphone Element (TA-117/PT) |
19 | 5805-392-7937 | Contact Housing |
20 | | Gasket |
21 | 6135-681-8597 | Battery Cover Assy |
22 | 5940-5556-7802 | Binding Post Assy |
23 | 5930-566-1638 | Hook Switch |
24 | 5935-549-2646 | Connector (U-79/U) |
