Toa RS-442 User manual

4P removable terminal plug
(supplied with the N-8400RS)
N-8400RS Substation interface unit
To line 2 (Red)
Two pairs of
twisted pair cable
To handset
(refer to the following figure)
Frame
ground
Switch input for
the call button 3
(momentary)
Switch input for
the call button 2
(momentary)
Switch input for
the call button 1
(momentary)
To line 1 (Brown)
To line 4 (Yellow)
(Green)
(Blue)
(Black)
RS-442
To line 3 (Orange)
8 Ω speaker output
(Red) +
-
(Black)
(Gray)
(White)
(Brown)
(White)
(Blue)
(White)
*Open collector output: 24 V DC, Max. 30 mA
Control output *
External
power supply
Relay
Diode
24 V DC
GND
+
-
Microphone
INSTALLATION MANUAL
SWITCH BOARD RS-442
 ThankyouforpurchasingTOA’sSwitchBoard.
Pleasecarefullyfollowtheinstructionsinthismanualtoensurelong,trouble-freeuseofyourequipment.
1. GENERAL DESCRIPTION
TheRS-442isaSwitchboardtobeconnectedtotheN-8400RS4-wiresystemSubstationInterfaceUnit.
Itisequippedwith1microphoneinput(withamicrophoneunit),3switchinputsforcallbuttons,and1speaker
output,enablingyoutomakeaswitchpanelsuitableforapplications.
ByassigningadifferentmasterstationasacallingdestinationtoeachCallbutton,youcancalloneofthem
andmakeaconversation.
Warning
This is a class A product. In a domestic environment this product may cause radio interference in which case
the user may be required to take adequate measures.
2. CONNECTION
RS-442
Handset joint
cables
Handset cables
Wall surface
RS-481
RS-442 (Bottom)
Note
When using the RS-481 Option handset, cut the
jumper wire next to the handset joint cables on
the circuit board as illustrated below.
If not cut, sound comes out from the RS-442's
speaker and returns back to the handset's
microphone, resulting in acoustic feedback.
Jumper wire
Handset joint cables
[RS-442 and RS-481 connections]
Note
Cutoutunusedwirestoavoidshort-circuiting.

3. INSTALLATION
3.1. Installation Completion Drawing
Unit:mm
[Front] [Side] [Rear]
88.1
91.2
130 – 150 130 – 150
28.1 67.5
3.2. When Making Operation Panel for Flush-Mount Installation
PuttheRS-442intheYC-3022-GangElectricalBoxmountedinthewall.
Then,connectthecablesfromRS-442totheswitchesmountedontheoperationpanelseparatelyprepared.
Note: WhenusingthePApagingfunction,keeptheoperationpanelasfarawayfromthePApagingspeaker
aspossibletoavoidacousticfeedback.
4. SPECIFICATIONS
CallButtonWiring 6cables(for3momentaryswitches)
RatedInput 1W
ControlOutput Opencollector,Maximumcontrolledvoltage:30VDC
Controlcurrent:30mA
Microphone Electretcondensermicrophone
Wiring Twistedpaircables(2pairs)
TransmissionRange 1km/ø0.5mm(AWG24)
1.5km/ø0.65mm(AWG22)
2km/ø0.9mm(AWG19)
OperatingTemperature 0to40ºC
Weight 140g
Note: Thedesignandspecicationsaresubjecttochangewithoutnoticeforimprovement.
133-21-00014-01
Wall surface
RS-442
Operation panel (separately prepared)
YC-302
2-Gang Electrical Box
(option)
Tip
YC-822 Indoor Wall-Mount Box
can also be used.
URL:https://www.toa.jp/
Traceability Information for Europe
Manufacturer:
TOACorporation
7-2-1,Minatojima-Nakamachi,Chuo-ku,Kobe,Hyogo,Japan
Authorizedrepresentative:
TOAElectronicsEuropeGmbH
Suederstrasse282,20537Hamburg,Germany