SHS1890
™
ptt amplifier
© 2008 Plantronics, Inc. All rights reserved. Plantronics, the logo design, Encore, SHS1980, Sound Innovation, Starset, SupraPlus and Tristar are trademarks or registered trademarks of Plantronics, Inc. Plantronics
does not endorse or sponsor any promotional offers made in this advertisement. Please contact the reseller directly with any questions related to promotional offers. Printed 05.08 SP54
HeleNeue 25 Ultra Light
27.5 pt 100.45.0.18
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 amplification.
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
SHS1890_PS_110810_B.indd 1
11/8/10 2:49:31 PM
