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General Description

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

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

erage of 4,000 sq. ft. up to 12,500 sq. ft. in both single and dual channel modes.  

The SI1015 modulator and SZI1015 or SZI1029 emitters are the primary compo-

nents of the systems.  The NT1015-120 will provide power for the SI1015 modula-

tor and up to two SZI1015 or SZI1029 emitters.  The SZA1060 terminating resistor 

(50 ohm), for the last emitter in a daisy chain, is included for system designs that 

incorporate daisy chaining of emitters.  The GA1031-CC rack adapter allows for 

easy mounting of a SI1015 modulator to a 19” rack.  The WM1 wall/ceiling mount 

easily mounts the SZI1015 or SZI1029 emitter panels.  The RI250 stethophone 

infrared receivers are for use with single channel systems operating at 2.3 MHz, 

and include the BA151 rechargeable battery.  Alternatively, for dual channel sys-

tems, the HDI302 stethophone infrared receiver is for use with systems operating 

at  2.3/2.8  MHz,  and  also  includes  the  BA151  rechargeable  battery.  The  BA151 

rechargeable batteries can be conveniently recharged with the L151-10 charging 

unit(s) with the NT92-120 power supply.  In addition, the NT2013-120 will power 

two to five L151-10 charging units.

Wireless | 

Systems

System Includes:

(1) SI1015—Rack mountable, half rack, two channel modulator
(1) NT1015-120—29 V DC power supply
(1) GA1031-CC—Rack adapter for SI1015 modulator
(2) SZI1029—Emitter panel for single, dual or multi channel use  
(2)  WM1—Wall/ceiling mount with 5/8” thread for mounting 2 

or more SZI1015 or SZI1029

(1) SZA1060—Terminating resistor 
(15) HDI302—Stereo/two channel stethophone infrared receiver
(2) L151-10—Charging unit with power supply 
(1) NT2013-120—Power supply for (2) to (5) L151-10 charging units  

SI1015-12500 Dual System Package

* Illustrations do not show NT1015-120 power supply, GA1031-CC rack 
adapter, SZA1060 terminating resistor, NT2013-120 power supply.

Audio Input B

(XLR-3F)

Audio Input A

(XLR-3F)

DC Input Socket

(For NT1015-120)

RF Output 2
(BNC)

RF Output 1

(BNC)

Cable Grip

Strain Relief

RF Output 

Termninal 1

DC Output 

Termninal 1

DC Output 

Termninal 2

RF Output 

Termninal 2

Level Control A

Level Control B

Channel Selector Switch

IR Monitoring Diodes

49.817"

(1265.35 mm)

7.000"

(177.80 mm)

3.620"

(91.95 mm)

2.360"

(59.94 mm)

Power Supply

NT1015–120

9.040"

(229.62 mm)

6.660"

(169.16 mm)

10.350"

(262.89 mm)

9.680"

(245.87 mm)

ON/OFF

Switch

1.688"

(42.88 mm)

Power Cord

72.000"

(1828.80 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)

ø.251

(6.38 mm)

Screw Holes

Replaceable

Ear Cushions

Two IR

Receiving Diodes

(Behind plastic cover)

Inserted BA151

Rechargeable

Battery

ON/OFF Volume Control

Channel Selector Switch

7.390"

(187.71 mm)

1.467"

(37.26 mm)

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)

SI1015

WM1

L151–10NT

HDI302

SI1015–Rack mountable, half rack, two channel modulator.  Operates at 

2.3/2.8 MHz.  NT1015-120 power supply required. 

SI1015

Audio Input B

(XLR-3F)

Audio Input A

(XLR-3F)

DC Input Socket

(For NT1015-120)

RF Output 2

(BNC)

RF Output 1

(BNC)

Cable Grip

Strain Relief

RF Output 

Termninal 1

DC Output 

Termninal 1

DC Output 

Termninal 2

RF Output 

Termninal 2

Level Control A

Level Control B

Channel Selector Switch

IR Monitoring Diodes

49.817"

(1265.35 mm)

7.000"

(177.80 mm)

3.620"

(91.95 mm)

2.360"

(59.94 mm)

Power Supply

NT1015–120

9.040"

(229.62 mm)

6.660"

(169.16 mm)

10.350"

(262.89 mm)

9.680"

(245.87 mm)

ON/OFF

Switch

1.688"

(42.88 mm)

Power Cord

72.000"

(1828.80 mm)

3.318

"

(84.28 mm)

10.270

"

(260.86 mm)

IR Transmission Diodes

(behind cover)

4.970

"

(126.24 mm)

RF Output (BNC)

MONO/Multi Switch

RF Input (BNC)

IEC Mains Connector

5/8

" Thread for mounting

(3/8" X 1/2" Adapters included)

Convection Cooling Fins

SZI1029

SI1015-12500

Dual

CBinder - Information Systems.indd   33

11/11/08   11:50:00 AM

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