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F

EATURES

• DQPSK digital modulation technology
• Band IV operation between 2 and 6 MHz
• For the use in conference rooms, even in daylight
• Switch to compensate the signal delay when using several 

radiators in one system 

• Radiation angle ± 25°
• Stand-by function
• Connection to connect further radiators in a daisy chain
• Half-power / full-power 

the operating mode can be selected with a switch

T

ECHNICAL

S

PECIFICATIONS

Number of IR LEDs. . . . . . . . . . . . . . . . . 275
Total IR output at 20 °C . . . . . . . . . . . . . 8 Wrms  16 Wpp
Total optical peak intensity. . . . . . . . . . . 9 W/sr
Modulation . . . . . . . . . . . . . . . . . . . . . . DQPSK
Modulation frequency . . . . . . . . . . . . . . 2 to 6 MHz
IR wavelength. . . . . . . . . . . . . . . . . . . . . 

λ

p = 850 nm

Angle of radiation . . . . . . . . . . . . . . . . . ± 25°
RF input. . . . . . . . . . . . . . . . . . . . . . . . . Nominal 2 Vpp, 

minimum 20 mVpp, 
75 

Ω

RF output . . . . . . . . . . . . . . . . . . . . . . . 1 Vpp, 0 V DC, 75 

Ω

Supply voltage. . . . . . . . . . . . . . . . . . . . 110 - 240 V, 50 to 60 Hz
Power consumption. . . . . . . . . . . . . . . . max. 36 W
Power consumption (stand-by) . . . . . . . 3 W
Dimensions (H x W x D) . . . . . . . . . . . . . 228 x 452 x 218 mm
Weight . . . . . . . . . . . . . . . . . . . . . . . . . 4.95 kg
Colour. . . . . . . . . . . . . . . . . . . . . . . . . . black

D

ESCRIPTION

The Iris EF radiator belongs to the latest generation of infrared 
system high power radiators for the wireless Iris audio system. 
An electrical signal supplied from the Iris TS infrared control unit is
converted into infrared light invisible to people and radiated into
the room. The signal to be transmitted can comprise up to 16 
channels in the range of 2 to 6 MHz (band IV). For installation a 
separate mounting bracket is available. Up to 30 Iris EF radiators
can be connected to a total of four signal outputs of one Iris TS
control unit in a daisy chain. If the Iris EF radiator does not receive
a signal, it automatically turns into the standby mode. When the
temperature of the radiator is too high, the system will auto-
matically switch from full power to half power. If the temperature
is still too high, the radiator will be switched to stand-by mode. 

O

PTIONAL

A

CCESSORIES

CA 5111

Connecting cable BNC male-male,
length 10 m, 75 ohms . . . . . . . . . Order # 723.096

CA 5121

Connecting cable BNC male-male,
length 20 m, 75 ohms . . . . . . . . . Order # 723.118

CA 5302

Bracket for wall mounting 
of Iris EF . . . . . . . . . . . . . . . . . . . . Order # 722.871

S

UPPLIED

A

CCESSORIES

1 power cable, 4 m / 12.5 ft
1 BNC connecting cable, 3.5 m / 11 ft
1 terminating resistor, 75 

Ω

beyerdynamic GmbH & Co. KG 
Theresienstr. 8 | 74072 Heilbronn – Germany
Tel. +49 (0) 71 31 / 617 - 0 | Fax +49 (0) 71 31 / 617 - 204
[email protected] | www.beyerdynamic.com

For further distributors worldwide, please go to www.beyerdynamic.com
Non-contractual illustrations. Contents subject to change without notice. E3 / Iris EF (08.14)

Iris EF

Infrared Radiator

Order # 722.839

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