TOA INTERCOM SYSTEMS
DESK/SURFACE-MOUNTED
MASTER STATION
HF-250M
DESCRIPTION
The HF-250M desk/surface-mounted type master intercom
station is designed to operate together with a TOA fully
electronic microcomputer-controlled exchange equipped
with a memory for stored program control. The HF-250M
can communicate in full-duplex with all other master
stations in the system. It has a handset and an on-board
electret condenser mic. It is equipped with an auto-dialer
function that can connect a maximum of sixteen (16)
stations by one-touch dialing of a registered station
number. The HF-250M also has an LCD display to show
dialing data and current time. The DT-E70 data transmitting
unit is required for this display.
FEATURES
1. Desk-top or wall mounting.
2. Sixteen auto-dial keys.
3. 12-segment LCD shows calling station number, waiting
station number, and number of waiting stations, plus
current time. DT-E70 data transmitting unit is required
for all except calling station number display.
4. High/Low selectable speaker volume control.
5. External microphone or headset connection.
6. “Spill-proof” keypad.
7. Jack to connect 4-pin modular telephone plug.
8. Programming from keypad.
9. Two-pair twisted wire (22—24AWG).
