Toa EXES-6000, HF-640S, YC-150, YC-150E, YS-13 Specifications

2-WIRE INTERCOM SYSTEM

EXES-6000

HF-640S
YC-150

FLUSH-MOUNTED BACK BOX

YC-150E
YS-13

SURFACE-MOUNTED BACK BOX

DOOR STATION

FLUSH-MOUNTED BACK BOX

DOOR STATION
(HF-640S)

Features

1. Compact, weather-resistant type intercom station
featuring hands-free operation.

2. Rugged flush- or surface-mounted type with or to initiate conversation.
stainless steel front panel.

3. Volume controls to adjust microphone sensitivity

and speaker output level.

4. Call switch to either activate a call bell, chime, etc.

5. In-use lamp for eavesdropping protection.

6. Non-polar 2-wire system.

General Description

The HF-640S intercom station for outdoor use is
designed to operate in conjunction with the TOA fully
electronic exchange, which features a built-in
microcomputer with a memory for stored program
control. The station can communicate with a designated
master station in the system. In addition to intercom­munication, there are several other functions designed
into the system.
The station is equipped with a calling switch which
can either activate a call bell, chime or other

Specifications

Microphone Impedance

and Sensitivity:

Speaker:
Dialing System:

Line Impedance:

Audio Frequency

Range:

Calling Tone Signal

Output Level: 70dB/30cm
Wiring System:
Current Consumption:
Relay Contact Capacity

for Remote Control:
Ambient Temperature

Range:
Weight:

Optional Accessories:

Associated Equipment:

1k ohm/-68dB omnidirectional

electret condenser microphone
8

Ω,

2-1/2 inch dynamic speaker

Amplitude modulated pulse
number code

600 ohms balanced
200Hz~7.5kHz

Non-polar 2-wire system
17mA (Max.)

DC 24V 1A

-10°C~+60°C

(+14°F~+140°~F)

0.27kg (0.6 Ibs)

YC-150/YC-150E
Flush-mounted type Back Box

YS-13
Surface-mounted type Back Box

EX-600 2-wire Exchange
(Max. 32)
EX-610 2-wire Exchange
(Max. 64)

EX-620 2-wire Exchange

(Max. 128)

EX-630 2-wire Exchange

(Max. 256)

equipment, or which can initiate a call to a pre-

programmed station.
The HF-640S has an in-use lamp and is fitted with
volume controls to adjust microphone sensitivity and
speaker output level. The front panel of the HF-640S

is made of stainless steel. The YC-150/YC150E flush­mounted back box and the YS-13 surface-mounted
back box are available as optional accessories for
easy installation.

Dimensional Diagram

Architects and Engineers Specifications

The intercom door station shall be TOA model

HF-640S. The station shall provide a calling switch
and an in-use lamp. Volume controls for adjustment
of the microphone sensitivity and speaker output level
shall be built in the station. The front panel of
HF-640S shall be stainless steel. The flush-mounting

back box shall be TOA model YC-150/YC150E and
the surface-mounting back box shall be model YS-13.

TOA Corporation

Specifications are subject to change without notice.

Printed in Japan (305H)
833-63-013-98