Complete Headset
(including H31CD capsule, 15-foot cord,
push-to-talk switch)
Net weight: 230 grams (8.1 oz.)
H31CD capsule only: 10 grams (.35 oz.)
Shipping weight: 490 grams (17.3 oz.)
Operating and Storage Ranges
Operating current range: 10 to 120 mA dc
Operating temperature: 0°C to 50°C (32°F to 122°F)
Storage temperature: -40°C to 66°C (-40° F to 151° F)
Microphone/Amplifier
Output level: -23.5 ± 5 dbV (37.6 to 119 mV RMS)
Frequency range: 300 to 3300 Hz
Distortion: < 5%, 300 to 3300 Hz
DC resistance: > 35 ohms
Impedance: 50 ohms
Polarity: Nonpolar
Terminal voltage: 2.3 Vdc @ 10 mA; 5.0 Vdc @ 100mA
Downward Expander Depth: 20 dB
Receiver
The SHS1890 allows the use of a wide variety of
receiver styles. In addition to the characteristics
listed in the table below, each receiver has the
following features:
Acoustic limiter: Solid-state limiting device across the
receiver transducer
Frequency range: 300 to 3300 Hz
Distortion: < 5%
Unless otherwise specified, all specifications are nominal, and
assume a 50 ohm resistive load with a bias of 4.8 V dc through
226.5 ohms, and an input of 94 db SPL at 1000 Hz into an
attached headset top. Specifications are subject to change.
SHS1890 Push-to-talk Amplifier
Features:
• Allows the use of any H-series headset top in 6-wire controller
and dispatch operations
• Push-to-talk switch with selectable locking or momentary operation
• PJ-7 (equivalent to WE-425) connector
• Choice of 3 different coil cord lengths
• CE compliant
Cable options available:
• SHS1890-10 10-foot coil cord
• SHS1890-15 15-foot coil cord
• SHS1890-25 25-foot coil cord
Plantronics also offers the SHS2310, which features 10 dB of receiver amplication.
PLANTRONICS
Receiver Characteristics of Tops Used with SHS1890 Push-to-talk Amplifier
Plantronics Top StarSet
®
III StarSet
®
III TriStar
®
SupraPlus
®
SupraPlus
®
Encore
®
Encore
®
H31CD H31/H31N H81/H81N Monaural Binaural Monaural Binaural
H251/H251N H261/H261N H91/H91N H101/H101N
1kHz sensitivity 20.5 19.5 22.0 14.0 9.0 wide band: 26.0 wide band: 19.5
(dBPa/V, ±4 dB) narrow band: 37.0 narrow band: 31.5
Receiver Impedance 600 ± 150 480 ± 50 450 ± 112.5 150 ± 37.5 300 ± 75 wide band: 205 ± 30.8 wide band: 395 ± 59.3
(ohms, at 1 kHz) narrow band: 250 ± 37.5 narrow band: 440 ± 66
Source Drive 600 10 10 10 10 10 10
Impedance (ohms)
Measuring Brüel & Kjaer Brüel & Kjaer Brüel & Kjaer Brüel & Kjaer Brüel & Kjaer Brüel & Kjaer Brüel & Kjaer
Device 4157 Ear 4157 Ear 4157 Ear 4157 Ear 4157 Ear 4157 Ear 4157 Ear
Simulator
1
Simulator
1
Simulator
1
Simulator
1
Simulator
1
Simulator
1
Simulator
1
Note 1: A proprietary Plantronics adapter is used with the specified Brüel & Kjaer measuring device.
For more information about the SHS1890
or other Plantronics products, please visit
our Web site at www.plantronics.com.
TEL: 800-544-4660 (USA AND CANADA)
831-458-7700 (OUTSIDE USA)
Product Specifications
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