619 Series Audio Bridge
4 WAY / 6WAY / 4 wire type 619GI & 619EI
Bridging The Gap In Telecommunications



The new 619 Series Audio Bridge represents the most versatile and cost effective audio bridge on the market today. Providing full 4 wire bridging facilities on all ports the unit has a range of applications, such as HF/VHF/UHF radio networks, Audio bearer systems, Data Modem splitters / combiners, public address systems, etc. Independent ports allow the bridge to be configured in any combination providing the system designer with greater flexibility.


Omnitronics 619 Series Audio Bridge Picture


All audio inputs and outputs are transformer coupled and have a wide audio range to cater for most landline and radio applications. The signalling leads are isolated using optocouplers (E mute lead) and relays (M PTT lead).

Audio routing and level adjustments for both inputs and outputs are made from the front panel. Initial setup and maintenance plans are now far easier to implement. A protective cover provides easy access to these points and prevents inadvertent damage.

A LED level meter has been provided to allow simple setup of internal audio levels without the requirement for other test equipment. LED bars are calibrated in 3 dB steps. This meter can also be used as a diagnostic tool to monitor the bridges operation in conjunction with POWER, MUTE and PTT status LEDs.

The mute disable facility allows audio bearer circuits to be mixed, without the requirement of a mute control. This is very useful in circuits without control lines or where control facilities are incompatible i.e. tone / DC keying.

Remote control of the 6 way audio bridge is now possible via a 37 way D connector on the rear panel. This can be controlled from Omnitronics' 9000 Telemetry Series and 9200 Telemetry Series equipment or the 970CD Channel Decoder and the 619 Audio Bridge controller combination using 5 tone SELCAL. A common application is changing from a normal status mode. Particularly useful in shared repeater site.

619 Series Audio Bridges can be coupled together to form larger bridge networks. All audio connections are made through 8 way US MODULAR connectors.

The Audio Bridge is powered form a single 12v DC source and has optional plug pack socket or 2 part screw terminal connections. The 1U 19' subrack housing provides a convenient and minimal profile method of integrating into existing or new systems.



NEW FEATURES

Omnitronics Green Ball Bullet Point All audio adjustments through front panel.

Omnitronics Green Ball Bullet Point Led bar graph for setup and diagnostic testing.

Omnitronics Green Ball Bullet Point 4 or 6 independent ports.

Omnitronics Green Ball Bullet Point Input audio muting facility. Optional control by 'E' (Mute) lead.

Omnitronics Green Ball Bullet Point All DIP switch path selections via Front Panel access.

Omnitronics Green Ball Bullet Point Remote control of the 6 way bridge via rear 'D' connector.

Omnitronics Green Ball Bullet Point Wide input and output ranges.



POWER REQUIREMENTS

Omnitronics Green Ball Bullet Point Supply Voltage: 10 to 16 Vdc

Omnitronics Green Ball Bullet Point Supply Current: 300mA max.

Omnitronics Green Ball Bullet Point Power supply rejection ratio:> 80dB



E INPUTS

Omnitronics Green Ball Bullet Point Opto coupled bi-directional: 5 to 30 Vdc



M OUTPUTS (PTT)

Omnitronics Green Ball Bullet Point Voltage free contact: 30 Vdc 1A max. (resistive)



AUDIO INPUT

Omnitronics Green Ball Bullet Point Impedance: 600 ohms balanced

Omnitronics Green Ball Bullet Point Input Level range: -25 to +5dBm

Omnitronics Green Ball Bullet Point Channel Crosstalk: Better than - 63dB

Omnitronics Green Ball Bullet Point Common mode reject ratio: Better than 60dB

Omnitronics Green Ball Bullet Point Remote control port (619EI only)

Omnitronics Green Ball Bullet Point 37 way D connector



AUDIO OUTPUT

Omnitronics Green Ball Bullet Point Impedance: 600 ohms

Omnitronics Green Ball Bullet Point Output Level Range: -25 to +0dBm into 600 ohms

Omnitronics Green Ball Bullet Point Frequency Response: 300 - 3Hz (+/- 1dB ref 1KHz)

Omnitronics Green Ball Bullet Point Diagnostic LEDs: 1 x Level Meter 1 x Power LED 4 /6 x Mute inputs



BLOCK DIAGRAM OF TYPE 619GI AUDIO BRIDGE



PHYSICAL

Omnitronics Green Ball Bullet Point Dimensions: (H x W x D): 44mm x 19" x 255mm (1RU)

Omnitronics Green Ball Bullet Point Weight: 5kg



ENVIRONMENTAL

Omnitronics Green Ball Bullet Point Operating Temperature:0 to 60 deg. C

Omnitronics Green Ball Bullet Point Relative Humidity:0 to 95% non condensing


Download the PDF brochure here.


For further information on the Omnitronics 619 Audio Bridge, please do not hesitate to e-mail us at :

sales@elco-electronics.com

[Return to Home Page] [Contact Us] [Download]