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General Description

Sennheiser offers system packages that include all components necessary to con-

figure a complete system.  Sennheiser’s Medium-Area Infrared Systems provide 

coverage of 1500 sq. ft. to 3000 sq. ft. in single channel mode.  The SI 30 trans-

mitter and SZI 30 emitter are the primary components of the system.  These are 

powered by the NT20-4-120 AC power adapter and KKY20-015 octopus power 

cable, which connects up to four SI30 and SZI30.  For easy installation, the SI30 

and SZI30 may be wall or ceiling mounted with the IZK20 mounting clamp and 

IZM20 mounting hardware, in combination with the WM1 wall/ceiling mount.  The 

RI250 stethophone single-channel infrared receiver includes the BA151 recharge-

able  battery,  which  conveniently  recharges  with  the  L151-10/NT  charging  unit 

with power supply.  

Wireless | 

Systems

System Includes:

(1)  SI30–Two channel switchable or stereo infrared transmitter
(2)  SZI30–Infrared emitter panel
(1)  KKY20-015–Octopus power cable
(1)  NT20-4-120–AC power adapter 
(2)  KR20-015–RF cable to connect SI30 to SZI30
(3)   IZK20–Mounting clamp for SI30 and SZI30
(1)   IZM20–Mounting hardware for clustering up to four SI30 and SZI30.
(1)  WM1–Wall/ceiling mount  
(5)   RI250–Single channel infrared stethophone receiver
(1)   L151-10/NT–Charging unit with power supply

SI30-2250 System Package

* Illustrations do not show KKY20-015 power cable, NT20-4-120 power 
adapter, KR20-015 jack plug.

3.406"

(86.51 mm)

4.707"

(119.56 mm)

1.000"

(25.40 mm)

IR Transmission Diodes

LED Indicator for Transmission Mode

AF Input

(3 Pin Texas Socket)

Channel Switch

Stereo, CH 1, CH 2

RF Output

(3.5 mm MONO Jack)

Power Supply

(2 Pin Texas Socket)

2 CH-AF Connection Cable

3 Pin Texas Connector

1/8" Stereo 

Jack Plug

1/8"  to 1/4" Stereo 

Jack Adapter

3.406

"

(86.51 mm)

Power Supply

(2 Pin Texas Socket)

RF Output

(3.5 mm MONO Jack)

AF Input

(3.5 mm MONO Jack)

4.707

"

(119.56 mm)

1.000

"

(25.40 mm)

IR Transmission Diodes

LED Indicator for Transmission Mode

3.406

"

(86.51 mm)

Power Supply

(2 Pin Texas Socket)

RF Output

(3.5 mm MONO Jack)

AF Input

(3.5 mm MONO Jack)

4.707

"

(119.56 mm)

1.000

"

(25.40 mm)

IR Transmission Diodes

LED Indicator for Transmission Mode

3/8" Internal Thread

Far Side

1.333"

(33.86 mm)

3.364"

(85.45 mm)

.978"

(24.84 mm)

1.194"

(30.33 mm)

.574"

(14.58 mm)

1.347"

(34.21 mm)

34.21"

(79.25 mm)

3/8"

Thread

4.350"

(7110.49 mm)

3/8"

Thread

3/8"

Thread

5.433"

(138.00 mm)

ø.640"

(16.26 mm)

ø.640"

(16.26 mm)

ø.640"

(16.26 mm)

ø.740"

(18.80 mm)

5/8" Internal Thread

3/8" Internal Thread

ø.584"

(14.83 mm)

.574"

(14.58 mm)

1.347"

(34.21 mm)

34.21"

(79.25 mm)

3/8"

Thread

4.350"

(7110.49 mm)

3/8"

Thread

3/8"

Thread

5.433"

(138.00 mm)

ø.640"

(16.26 mm)

ø.640"

(16.26 mm)

ø.640"

(16.26 mm)

ø.740"

(18.80 mm)

5/8" Internal Thread

3/8" Internal Thread

ø.584"

(14.83 mm)

Adjusting

Knob

Ratchet Adjustment

For Angle

5/8

" External

Thread

4.571

"

(116.10 mm)

ø

1.936

(49.17 mm)

2.724

"

(69.19 mm)

ø

.161

(4.09 mm)

ø

.743

(44.27 mm)

Mounting Plate

ø

.1242

(31.55 mm)

5.286"

(134.26 mm)

Replaceable

ear cushions

Two IR

Receiving Diodes

(behind plastic cover)

7.390"

(187.71 mm)

1.467"

(37.26 mm)

Inserted BA151

Rechargeable

Battery

ON/OFF

Volume

Control

ø.752

(19.10 mm)

74.000"

(1879.60 mm)

13.000"

(330.20 mm)

2 Pin Texas Connector

NT92–120 Power Supply

LED Indicator

Trickle Charge

(Green)
Button:

Press to begin

10 HR charge cycle

LED Indicator

Charge (Red)

Charging for

RI250, HDI302

Infrared Receivers

(Up to ten)

1.500"

(38.10 mm)

LED Indicators

Bright=Normal charge

Dim=Trickle charge

Charging for

BA151 Battery

(Up to ten)

5.450"

(138.43 mm)

SI30

SZI30

IZK20

IZM20

WM1

L151–10NT

RI250

 SI30–Two channel switchable or stereo infrared transmitter.  Operates at 

2.3/2.8 MHz.  Coverage 750 sq. ft. (mono) or 375 sq. ft. (stereo).

SI30 

3.406"

(86.51 mm)

4.707"

(119.56 mm)

1.000"

(25.40 mm)

IR Transmission Diodes

LED Indicator for Transmission Mode

AF Input

(3 Pin Texas Socket)

Channel Switch

Stereo, CH 1, CH 2

RF Output

(3.5 mm MONO Jack)

Power Supply

(2 Pin Texas Socket)

2 CH-AF Connection Cable

3 Pin Texas Connector

1/8" Stereo 

Jack Plug

1/8"  to 1/4" Stereo 

Jack Adapter

SI30-2250

CBinder - Information Systems.indd   5

11/11/08   11:49:16 AM

Summary of Contents for SI 30-2250 SINGLE

Page 1: ... Pin Texas Socket RF Output 3 5 mm MONO Jack AF Input 3 5 mm MONO Jack 4 707 119 56 mm 1 000 25 40 mm IR Transmission Diodes LED Indicator for Transmission Mode 3 406 86 51 mm Power Supply 2 Pin Texas Socket RF Output 3 5 mm MONO Jack AF Input 3 5 mm MONO Jack 4 707 119 56 mm 1 000 25 40 mm IR Transmission Diodes LED Indicator for Transmission Mode 3 8 Internal Thread Far Side 1 333 33 86 mm 3 364...

Page 2: ...IZK20 Mounting clamp for SI30 and SZI30 Each transmitter or emitter must have separate IZK20 mounting clamp IZK20 3 8 Internal Thread Far Side 1 333 33 86 mm 3 364 85 45 mm 978 24 84 mm 1 194 30 33 mm IZM20 Mounting hardware for clustering up to four SI30 and SZI30 IZM20 574 14 58 mm 1 347 34 21 mm 34 21 79 25 mm 3 8 Thread 4 350 7110 49 mm 3 8 Thread 3 8 Thread 5 433 138 00 mm ø 640 16 26 mm ø 64...

Page 3: ...er Supply LED Indicator Trickle Charge Green Button Press to begin 10 HR charge cycle LED Indicator Charge Red Charging for RI250 HDI302 Infrared Receivers Up to ten 1 500 38 10 mm LED Indicators Bright Normal charge Dim Trickle charge Charging for BA151 Battery Up to ten 5 450 138 43 mm SI30 2250 System Package 5 286 134 26 mm Replaceable ear cushions Two IR Receiving Diodes behind plastic cover ...

Page 4: ...ll be stethoset design with a carrier frequency of 2 3 MHz The AF frequency response must be 18 18 000 Hz The receivers shall contain a rechargeable Nickel Metal Hydride battery which can easily be recharged with the L151 10 NT charging device with power supply for up to ten rechargeable batteries Limited Product Warranty Service Sennheiser Electronic Corporation extends the following limited prod...

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