RTS BP-4000, Technical Manual

Page: 11 / 36

Universal Beltpack Introduction 11
Specifications
Power Requirements
a
Max. Operating Current (unbalanced)
45 mA
Max. Operating Current (balanced)
52 mA
Channel Supplied
18–33 VDC
Local Power
18–33 VDC
Environmental
Operating Temperature
32° F to 131° F (0° C to 55° C)
Operating Humidity
5% to 95%, non-condensing
Storage Temperature
-4° F to 158° F (-20° C to 70° C)
Storage Humidity
15% to 90%, non-condensing
Dimensions
3.75” W x 1.35” D [1.55” D w/beltclip] x
4.69” H [4.79” H w/top panel button]
95.2 mm W x 34.2 mm D [39.4 mm D w/
beltclip] x 119.2 mm H [121.6 mm H w/top
panel button]
Interface Requirements
Headset
50 to 200

(dynamic)
1 k to 13 k

(electret)
Microphone Output Adjustable
max. 15dB (3dB per level)
Headphones
50 to 600

Balanced Intercom Channel
Output Level
0.0 dBu nominal
Frequency Response
200Hz – 8kHz
Noise Contribution
<-60 dBu
Total Harmonic Distortion
<1.0%
Terminating Impedance
Balanced
300

Bridging Impedance
>10 k

Call Signaling
Send
20 kHz
Receive
20 kHz
Mic Off Frequency
Send
24 kHz
Receive
24 kHz
Unbalanced Intercom Channel
Output Level
0 dBu nominal
Frequency Response
200Hz – 8kHz
Terminating Impedance
200

Noise Contribution
<-60 dBu
Total Harmonic Distortion
<1.0%
Bridging Impedance
Unbalanced
>10 k
