1 System example

2 System features 3 System standards

Audio group Production group

Production group

48

Standard System

The Digital Wireless Intercom System is an intercom system for broadcasting, theater, hall, and indus-try, which utilizes the basic technique of the personal handy phone (PHS), developed as a digital mobile communication technique of the “second generation” cordless telephone system. The coexistence of the simple operability that has most preferentially taken into consideration the basic functions as a wireless intercom and the reliability as professional equipment that has sought the ultimate in what is required therefor based on the achievements cultivated in developing the analog wireless intercom. Further, the radio communication device has fully incorporated the characteristics, such as clear sound quality inherent in digital communication, use of abundant and stable channels, excellent extendibility, etc.

1) Used frequency: 1900 MHz band, 35 waves 2) Communication system: Multi-carrier TDMA-TDD system 3) Antenna power: 10 mW or less 4) Multiplicity: 4 5) Frequency switching: Synthesizer system by quartz control 6) Separation: 300 kHz (600 kHz separation in the same area) 7) Channel switching: MCA (by CS selection) 8) Audio encoding system: 32 kbit/s ADPCM 9) Transmission rate: 384 kbit/s10) Technical standard conformance: Conformity-certificated product11) Radio station license: Not required

Radio station license is not requiredCommunication of higher quality than analog systemQuick connectionUse of optional CS control unit (for long distance) enables extended connection between master unit and slave unit up to 800 m (standard: 150 m) When the recommended cable [L-4E5C] is used

Digital Wireless Intercom System

Microphone volume odjustment volumeMonitor speaker volume odjustment volume

Monitor speaker

Power supply indicator

Power switch

Microphoneinput connector

HYB1unit

HYB2unit CS control unit

Independent telephone line（Modular jack）

PGM inputunit

AC100~240V power supplyinput connector

（CS D） （CS C） （CS B） （CS A）

Test originating/receiving jack

Line levelodjustment volume

Side toneodjustment volume

PGM volume odjustment volume

Display panel（LCD） Back light switch

SP jackSynchronization unit（IN/OUT）

感電に注意

SHOCK

WARNING 警告

ELECTRIC

AC100-240V 50/60HzAC100V 150VAAC240V 240VA

ＭＡＤＥ ＩＮ ＪＡＰＡＮ

ＤＣＬ　ＳＹＳＴＥＭＢＳ　ＹＦＦ－１８７０

Ａ０７－０２９４００１ Ｔ

Ｎｏ．

ＦＵＳＥ

ＤＵ－７１２７

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ＳＰ

ＴＥＬ

１

２

ＤＵ－７１２６

ＰＧＭ　ＩＮ

ＣＳ Ａ ＣＳ Ｂ ＣＳ Ｃ ＣＳ Ｄ ＨＹＢ １ ＨＹＢ ２

ＨＹＢ

４ＷＩＮ

ＯＮＯＦＦＴＥＲＭ

ＤＵ－７１２４

ＰＵＳＨ

４ＷＯＵＴ

２Ｗ

ＨＹＢ

ＯＮ

２Ｗ

ＤＵ－７１２４

ＰＵＳＨ

４ＷＯＵＴ

ＴＥＲＭ

４ＷＩＮ

ＯＦＦ

ＩＮ

PU

SH

ＯＵＴ

ＤＵ－７１２５

ＣＰＵ／ＳＹＮＣ．

ＤＵ−７１２３

ＯＵＴ（ＤＣ　ＯＵＴ）

PU

SH

ＤＵ−７１２３

ＯＵＴ（ＤＣ　ＯＵＴ）

PU

SH

ＤＵ−７１２３

ＯＵＴ（ＤＣ　ＯＵＴ）

PU

SH

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ＯＵＴ（ＤＣ　ＯＵＴ）

PU

SH

ＣＳ ＣＳ ＣＳ ＣＳ

ＰＵＳＨ

100-120V 250V/1.5A220-240V 250V/1A

100–240V AC

OUT

ＹＦＦ－１８７０ＢＡＳＥ　ＳＴＡＴＩＯＮ ＴＥＳＴ

Ｈ.ＳＭＩＣ

POWERMIC PGMSP IN OUT BAL.T.BINPGMT.B BAL.

430±2

424±2

480±2

50±

1

76.2

±1

88±

1

462±2

460±225

0±2

4.2

LIGHT

LINE1 LINE2

12

76

Base Station

SpecificationsStructure: Rack-mount typePower supply: AC 100 V~240 VInput/output: Microphone, SP, 2W/4W line, PGM, TELEnvironment: -10~+50˚C (excluding display panel (LCD) part)Weight: 7.0 kg

Power UNITProduction on order

This product is necessary when five or more CS units are connected to one BS unit.

49

*One unit of CS control is provided as standard equipmentCSB, CSC, CSD are optional.

SpecificationsOutput voltage: 24 VPower supply: AC 100 V 240 V can be selected (on shipping)Environment: -10~+50˚CWeight: 6.0 kg

Digital Wireless Intercom System

(BS) YFF-1870

• Easily connected to wired intercom (2W/4W2 system)• Connected to public telephone line• PGM input• Independent use enabled using microphone/speaker• Status display by LCD• Up to 4 CS units can be connected

(Up to 16 CS units can be connected by the optional setting)• Rack-mount type EIA=2U, JIS=2J

YPL-1800

CS control unit

Independent telephone line（Modular jack）

Originating/receiving call4W connector Originating/receiving

call 2W connector

Line switching switch

PGM input connectorAC100V-240V power supply

input connector

Synchronization connector（Modular jack）

Power supply indicator

Power switch

Line levelodjustment volume

Side toneodjustment volume

PGM volume odjustment volume

Base Station (BS) YFF-1880

50

• Easily connected to wired intercom (2W/4W system)• Connected to public telephone line• PGM input• Up to 4 CS units can be connected• Rack-mount type EIA=1U, JIS=1J

SpecificationsStucture: Rack-mount typePower supply: AC 100 V~240 VInput/Output: Microphone, SP, 2W/4W line, PGM, TELEnvironment: -10~+50˚CWeight: 4.4 kg

Channel display

Slot display

Antenne

LINE INconnector

LINE OUTconnector

DC INconnector

YRW–1870 CELL STATION

SLOT

CH

1 2 3 4

IN OUT(DC OUT)

CSNO.

DC 12~24VPUSH

4

2

3

153±2

40

155±

2

135±

2

225±

2

51±

2

44.5

±2

Metal fittings

Connector cap

Can

be

rota

ted

thro

ugh

180˚

10.520

25

1015

M5

3-φ３.5

15

40

M5

63

2-C3

2-C3

Cell Station

Fittings

(CS) YRW-1870

51

Digital Wireless Intercom System

• Diversity system• Compact and easily installed temporarily• Operable with one microphone cable (power supplied from BS)

Fittings for CS unit (YRW-1870)

SpecificationsStructure: Wall-mounting and microphone stand mounting systemPower supply: DC 24 V (supplied from the main device) DC 12 V (external power supply)Number of calls: Simultaneous calls are possible in 1: 4Antenna: Diversity operation with shared transmission/reception and integrally

structured caseChannel setting: Multi-channel access systemStandards: Technical standard conformance has been certificatedEnvironment: -10~+50˚CWeight: 705 g (fittings not included)

Can be rotated

through 180°

Channel displaySlot display

Antenna

Address settingSwitch

LINE OUTLINE IN

DC IN

Cell Station (CS) YRW-1850

SpecificationsStructure: Wall-mounting systemPower supply: DC 24V (supplied from the main unit) DC 12V (external power supply)Number of calls: Simultaneous calls are possible in 1: 4Antenna: Diversity operation with shared transmission/reception and integrally structured caseChannel setting: Multi-channel access systemStandards: Technical standard conformance has been certificatedEnvironment: -10~+50˚CWeight: 940 g (fittings not included)

52

TALK switch (Call switch)

BATT LED HEAD SET connector

SW & VR(Reception volume)

R

NO.

MADE IN JAPAN

T

A05–0038001

SDCL SYSTEM

DC3V 0.4W

PS YMT–1930

001IZAA1286

SW&VOL

PUSH CALL

OFF

PUSH TALK

L.K

BAT.

DIGITAL WIRELESS MOBILE

68±126

±1

50±

3

100.

5±2

Personal Station

Battery packYBA-4120 PBA-4120

ChargerPCF-1920

AA alkali cell×2 Nickel-hydrogen battery (2.4V)

*Batteries are not included.

SpecificationsCharger: 2 unitsCharge current: 700 mACharge time: About 3 to 4 hoursPower supply: AC 100 VEnvironment: 0~+40˚CWeight: 1.6 kg

53

Digital Wireless Intercom System

HS-316D

SpecificationsStructure: Compact, light, dustproof, and drip-proofPower supply: AA alkali cell×2Continuous use time: 8 hours or moreCall: Bidirectional callAntenna: Case-integrated (removal prohibited)Gain: 2.14 dBi or lessChannel setting: Multi-channel access systemStandards: Technical standard conformance has been certificatedEnvironment: -10~+50˚CWeight: 205 g (batteries included)

• Light and compact focused on operability • Operable with 2 AA cells • Monitor reception by the method of our own• Status display by LCD

(PS) YMT-1930

φ

±

±

φ

φ

φ

±

±±

±

HS-316D (Neck-mounting type)HEADSET

AMPLIFIER BOX

Keyboard for registration 4W/2W conversion connector

DN-5454 (For high-impedance headset)

COF-1800

2W4W

HS-126D (Head-mounting type)

54

Option

2W system (wired intercom etc.) converted into 4W system

DN-5435

SpecificationsMicrophone part (dynamic type)Impedance: 140Ω±5% at 1kHz

-77.8dB±4dB at 1kHz(0dB=1V/0.1Pa)

Frequency characteristics: 100Hz~12kHz within 20dB

Receiver partImpedance: 300Ω±20% (cord resistance included)Rated input: 10 mWMaximum permissive input: 500 mWOutput sound pressure level: 120dB±3dB at 1kHz

(0dB=2×10 Pa)Frequency characteristic: 100Hz~3.5kHz within -20dB

SpecificationsVoltage gain: 62dB or morePower supply: AA alkali cell×4Continuous use time: 5 hours or moreEnvironment: -10~+50˚CWeight: 400g (batteries included)

Outline of Digital Wireless Intercom SystemOne microphone cables connects between BS unit and CS unit, and between CS unit and CS unitMaximum 150 m between BS unit and CS unit, between CS units (recommended cable: CANARE L-4E5C)

1

Handover operation

When the extension of communication area is desired, handover setting is available by the setting of PS unit.

Handover: The CS units to which a PS unit is connected are switched automatically

Communication area A

Communication area B

When moved from communication area A to communication area B, CS unit of PS unit changes from No. 1 to No. 2.

CS No. 1

PS

CS No. 2Move

BS

2 Cascade connection up to 4 CS units is possible for one CS control unit in BS unit.Up to 4 CS control units can be mounted in one BS unit(When five or more CS units are connected to one BS unit, the Power UNIT (YPL-1800) is necessary)

5 No limit for use to the number of PS units dedicated for receiving command (When a PS unit dedicated for receiving command is used, the number of PS units that can be used is reduced by one)

4 PS units can be divided into 2 groups for use with one BS unit (YFF-1870)

3 Up to 4 PS units can make a call to one CS unit.

55

Digital Wireless Intercom System

CS

CS

CS

CS

CS

Group A

Group B

Group A

Group B

CS

Communication area 1

Communication area 2

Communication area 3

Communication area 4

BS

PS

PS

PS

PS

PS

System example -1 CS: 4 unitsBS: One unit PS: 16 units

CS: 16 units PS: 16 unitsBS: One unit Power UNIT: One unit

56

Power UNIT

BS

System example -2

Available frequencies (for private organization)Carrier number Frequency (MHz) Carrier number Frequency (MHz) Carrier number Frequency (MHz) Carrier number Frequency (MHz)

1 1895.150 11 1898.150 21 1901.150 31 1904.150

2 1895.450 12 1898.450 22 1901.450 32 1904.450

3 1895.750 13 1898.750 23 1901.750 33 1904.750

4 1896.050 14 1899.050 24 1902.050 34 1905.050

5 1896.350 15 1899.350 25 1902.350 35 1905.350

6 1896.650 16 1899.650 26 1902.650 36 1905.650

7 1896.950 17 1899.950 27 1902.950 37 1905.950

8 1897.250 18 1900.250 28 1903.250 12, 18CH are control carriers

9 1897.550 19 1900.550 29 1903.550

10 1897.850 20 1900.850 30 1903.850

Electrical characteristics BS (YFF-1870 YFF-1880)

CS (YRW-1870 YRW-1850)PS

YMT-1930

Commontohigh frequencies

Radio wave type G7D, G7E, G7X, G1D, G1E, G1X

Antenna type /2 sleeve antenna /4 whip antenna

Antenna impedance 50

Frequency range 1895.15 ~ 1905.95MHz

Total number of frequencies 37 waves (control carrier 2 waves, communication carrier 35 waves)

Separation 300kHz

Oscillation system Quartz control frequency synthesizer system

Frequency stability Within ±3×10-6

Modulation accuracy 12.5% or less

Transmission Antenna power 0.01W (+20 -50%)

Intensity of spurious radiation 2.5μW or less (beyond band) 250 mW or less (within band)

Modulation system /4 shift QPSK

Audio frequency 3kHz or less (300~3kHz)

Neighboring channel leak power 56dB or more than carrier wave power

Occupied frequency band area Within 288 kHz

Reception Reception system Double superhetrodyne

Reception sensitivity 16 dBμV or less (bit error rate 1×10-2)

Spurious block ratio 47 dB or more

Neighboring channel selectivity 50 dB or more (600 kHz detuning)

Body radiation 4 nW or less

Common Line frequency characteristic 300Hz~3kHz (within ±3dB)

Line input/output 0dBm balanced

Microphone input -60dBm balanced -20~0dBm unbalanced

Speaker output Inside 1W Outside 2W 10W or more at 8

External input 0dBm balanced

Used power supply/power consumption

AC100V±15%: 3AAC240V±15%DC 12V: 1A (master unit only)

130 mA or less at 3.0 V Operation terminated at 2.2V

Use environment Temperature; -10 ~ +50˚C, Humidity: Within 30~90%

YFF-1880 is not equipped with a microphone input or speaker output.

57

Digital Wireless Intercom System

2/4W

±

±

±±

±

±

±±

±

°

±

AF partTEL

Cell Station (CS)Line input/outputWired intercom

2/4W

Line input/outputWired intercom

4W

TEL

BATT

Synchronous cable

RF partCommunicationcontrol partAF partH. Set 1 3

2 4

Base Station (BS)

Cell Station

58

Digital Wireless Intercom System Portable type System

Features2W line of Clear-Com can be input directly4 PS units can be connected to one CS unit.Up to 5 CS units can be used simultaneously with synchronous connectionContinuous use time is 7 hours or more (when 8 AA alkali cells are used)The following settings are available with a cross key on the front

• Setting of LINE input/output interface (4W/2W)• Setting of talkback• Setting of audio input/output level• Confirmation of registration ID• Setting of RF output level

SpecificationsAudio frequency: 3.4 kHz or lessAudio encoding system: 32 kbit/s ADPCMLine specification: 4W: IN 0 dBm, OUT 0 dBm

AIR: IN -20dBmMicrophone input: -60dBm (unbalanced 600 ) Speaker output: 15 mW or more (at 8 )Power supply: DC8.0~16.0V (negatively grounded)Structure: Portable typeStandards: Technical standard conformance has been certificatedEnvironment: -10~+50Weight: 430 g

(CS) YFP-1821

Wired Intercom System, Connection with 2 channels is possible!Basic system

Personal Station (PS)

(BS) YOP-1800

YBB-1800

Base Station

Battery box

FeaturesAudio frequency: 3.4 kHz or lessLine specification: 4W: Input -20dBm(unbalanced 600 ) Output 0dBs(balanced 50 )Program input: -20dBm(balanced 600 )Public telephone function input/output: -10dB(600 ) 1 linePower supply: DC 8.0~13.5V(negatively grounded)Structure: Portable typeEnvironment: -10~+50˚CWeight: 480 g

YOP-1800 Battery box8 AA alkali cells are used

59

Digital Wireless Intercom System