The Proctor Model 46220 Telephone Hot Line provides a private
automatic-ringing telephone line between two telephones without using telco
facilities or special equipment and power. When one of the two connected phones
goes off-hook, the other phone automatically rings. The unit features
user-selectable one-way or two-way ringdown operation and three different
ringing patterns. The 46220 is ideal for facilities requiring immediate
uninterrupted communications, such as military bases, emergency service centers,
entry gates and guard shacks, school campuses, hotel/motel complexes, retail
stores, large business offices and private residences. It can also be interfaced
with multiline telephone systems to provide a special executive priority line
with absolute privacy and independence from other lines.

The 46220 is a stand-alone direct line telephone circuit that works
independently of the public switched telephone network. The 46220 is completely
self contained, providing its own source of 48VDC line power and 20 Hz ringing.
The user simply plugs the unit into the nearest standard AC outlet, plugs in the
line cords of the two telephones, and lifts the handset of one phone to
automatically ring the other. The user can manually select either one-way or
two-way ringdown and the desired ringing pattern via switches on the front
faceplate. It includes RJ11 modular jacks for quick connection of the telephone
line cords. The 46220 can be used with standard, cordless and multiline
telephones, or for transmitting data via modems or FAX machines. It is ideal for
use as a dedicated telephone-to-telephone hot line, a tie line between two key
or PBX systems, or as an Off-Premise Extension (OPX).
Features:
- Provides automatic ringdown between two telephone devices without using
telco facilities.
- Completely self contained; includes its own power supply and ringing
generator.
- User selectable ringing patterns and one-way or two-way ringdown.
- Standard 115 VAC operation.
- Modular jacks allow quick connection of telephone devices.
- Can be used as a tie line between key or PBX systems, or as an Off
Premise Extension (OPX).
- UL Listed; meets applicable FCC requirements.
Specifications:
- Operating Voltage: 95 to 130 VAC, 60 Hz 250 mA maximum, 30 watts
- DC Loop Length: Up to 30,000 feet, 24 AWG wire 1900 Ohms per loop (each
side)
- Loop Current: 20 mA @ 1.5K Ohms loop and Type 500 telephone
- Loop Voltage: 50 VDC nominal
- Ringing Generator: 105 VRMS at 20 Hz nominal (5.0 REN load)
- Ringback Tone: 440 and 480 Hz nominal.
- Ringing Cycles: Standard: 2 seconds on, 4 seconds off; Alert: 1 second on, 1
second off; or Emergency: 4 seconds on, 2 seconds off
- Operating Temperature: 0° to 50°C (32° to 122°F)
- Humidity: 0% to 95% (Non-Condensing)
- Dimensions: 8.45" (21.46cm) W x 2.5" (6.35cm) H x 7.0" (17.78cm) D
- Wt: 4 lbs, 9 oz (2.06 kg)