RTS BP-319 User manual

BP-319, BP-325, BP-351
Beltpack User Stations
The BP-319, BP-325, and BP-351 are portable user stations for use with RTS Two-Wire intercom systems. The BP-319 is a
microprocessor controlled one-channel intercom where the BP-351 is a microprocessor controlled two-channel select intercom
beltpack. The BP-325 is a binaural (stereo) programmable 2 channel beltpack with PGM-in capability. The BP-319 and BP-351
have connections for headset/earset microphones (Dynamic or Electret), whereas the BP-325 is for use with a dynamic micro-
phone only. The factory setting is for Dynamic.
Call Function
Call function that allows the user to send or receive call signals to other devices on the intercom channel, including audible
call alert on the listen side.
Microphone Kill Detect
Microprocessor controlled microphone kill detect.
Powered Externally
Powered externally, via the intercom system power supply on channel one.
Headset
Headset 4 or 5-pin XLR connection is available. (The BP-325 has both standard.)
Auto-Sensing Headset Connector
The BP-319 and BP-351 have a built-in auto-sensing headset connector that will determine automatically whether a dynamic
or electret headset is connected to the system. (BP-319 and BP-351 only)
Features
Line Drawing
BP-319 BP-325 BP-351

BP-319, BP-325, BP-351 Specications
BP-319 and BP-351
General
Channel Supplied Power Requirements:
30 VDC nominal (standard RTS line), 45 to 70 mA
Environmental Requirements:
Storage: -20°C to 80°C; 0% to 95% humidity, noncondensing
Operating: 0°C to 50°C; 0% to 95% humidity, noncondensing
Dimensions: 5” (127 mm) high, 3.5” (88.9 mm) wide, 1.8” (45.7 mm)
deep
Weight: Approximately 13 oz (364 g)
Interface Requirements
Headset/Earset:
50 to 200Ω dynamic microphone
50 to 600Ω headphones
RTS Intercom Channel:
Output Level: 0.775 Vrms (0 dBu) nominal
Bridging Impedance: greater than 10,000Ω
Call Signalling:
Send: 20 kHz ±100 Hz, 240 mVrms ±10%
Receive: 20 kHz ±800 Hz, 100 mVrms
Mic-Off Frequency Detect: 24 kHz ±800 Hz, 100 mVrms
Noise Contribution: less than -60 dB on the line
Headphone Amplier
Maximum Output:
60 mW into 150Ω
Frequency Response:
200 Hz to 8 kHz +1/-4dB nominal
Audible Alert:
1 kHz tone
Total Harmonic Distortion:
Less than 0.2% nominal at 50 mW from the line
Sidetone:
20 dB minimum range, adjustable
Connector Pin Congurations
Intercom Channel Connector
XLR-3 M/F
Pin 1 Common
Pin 2 +30 VDC In
Pin 3 Syst Chan 2
Headset Connector
Type: XLR-4F
Pin 1 Headset Microphone low
Pin 2 Headset Microphone high
Pin 3 Headphone Common
Pin 4 Headphone Chan 1 or Chan 1 and Chan 2 audio
Type: XLR-5F
Pin 1 Headset microphone low
Pin 2 Headset microphone high
Pin 3 Headphone low
Pin 4 Headphone high
Pin 5 No Connection
BP-325
General
Channel Supplied Power Requirements:
30 VDC nominal (standard RTS line), 65 to 85 mA
Environmental Requirements:
Storage: -20°C to 80°C; 0% to 95% humidity, noncondensing
Operating: 0°C to 50°C; 0% to 95% humidity, noncondensing
Dimensions: 5.00” (127mm) High, 3.75” (96.3mm)
Wide, 2.05” (52.1mm) Deep
Weight: 0.75 pounds (340 grams)
Exterior
Polystyrene and polycarbonate mix; gray textured main body
Impedance Across Intercom Line
10,000 Ω typical
Ambient Temperature Range
Operating: 0° C to 50° C
Storage: -40° C to 125° C
Noise Contribution to 200 Ω Intercom Line
-75 dBu
Program Input
Maximum input level: +20 dBu
Nominal input level: -10 to +8 dBu
Frequency response: 100 Hz to 12 kHz, ±3 dB
Monaural Dynamic-mic Headset Connector
XLR-4-31 receptacle (J13)
Pin 1 - Microphone low
Pin 2 - Microphone high
Pin 3 - Common
Pin 4 - Headphone high
Stereo Dynamic-mic Headset Connector
XLR-5-31 receptacle (J14)
Pin 1 - Microphone low
Pin 2 - Microphone high
Pin 3 - Common
Pin 4 - Headphone left high
Pin 5 - Headphone right high
Carbon-mic Headset Connector (J1)
¼-inch, 3-conductor Phone Jack
Used for Headset
Tip - Carbon microphone
Ring - Headphone
Sleeve - Common
Used for Mic Switch
Tip - Remote switch normal-open contact
Ring - No connection
Sleeve - Remote switch common
Intercom Line Input Connector (J11)
XLR-3-31 female receptacle
Pin 1 - Common
Pin 2 - Channel 1 intercom audio and +DC
Pin 3 - Channel 2 intercom audio
Line Loop/Aux Connector (J10)
XLR-3-32 male receptacle
Used for Loop-through:
Pin 1 - Common
Pin 2 - Channel 1 intercom audio and +DC
Pin 3 - Channel 2 intercom audio
Used for Program Input:
Pin 1 - Common
Pin 2 - Program input high
Pin 3 - Program input low
Used for Remote Mic Switch and/or External Power:
Pin 1 - Common
Pin 2 - +22 to +24 volts DC
Pin 3 - Remote switch normal-open contact
Ordering Information
BP-319 A4F • 1 channel portable metal beltpack with
an A4M headset connector. • Catalog Number:
90007753010
BP-319 A5F • 1 channel portable metal beltpack with
an A5M headset connector. • Catalog Number:
90007753000
BP-325 • 2 channel binaural (stereo), programmable
beltpack • Catalog Number: 9000673800
BP-351 A4F • 2 channel portable metal beltpack with
an A4M headset connector. • Catalog Number:
90007754010
BP-351 A4F • 2 channel portable metal beltpack with
an A5M headset connector. • Catalog Number:
90007754000
This specications information is preliminary and is subject to change without notication.
Brand names mentioned are the property of their respective companies.
Contact Information
Telex Communications, Inc.
12000 Portland Avenue South
Burnsville, Minnesota 55337
Telephone: [phone]
Fax: [phone]
Form Number: 38110505 Rev B
Date: September, 2007