6-In 1-Out Pro Stereo Audio Switcher INLINE. 
The IN3546R is a 6-input, 1-output stereo audio switcher designed to work in tandem with the INLINE IN3500 Series RGBS, VGA, and MAC II manual switchers. When input channels are selected on the attached video switcher, the IN3546R will automatically switch to the corresponding stereo audio input, adding audio-follow-video capabilities to the RGBS, VGA, or MAC II switcher.

Companion to IN3500 Series - The IN3546R is compatible with the following INLINE units: IN3526 / IN3526vi Composite / S-Video Switchers IN3504 / IN3506 RGBS Switchers IN3554 / IN3556 RGBHV Switchers IN3564 / IN3566 VGA Switchers IN3574 / IN3576 MAC II Switchers IN3584 / IN3586 RGBS Auto-Switchers

The IN3546R receives both power and switching commands from the attached IN3500 Series switcher using the IN9112, a custom 15-pin control cable which is provided with each unit.

Stand Alone Configuration While the IN3546R was designed to work in conjunction with an IN3500 Series video switcher, it may also be used as a free-standing stereo audio switcher if the appropriate power and contact closure signals are applied to the 15-pin control port. A single internal jumper sets the IN3546R for use with an IN3500 Series switcher (+5V power) or stand-alone operation (9 - 12V power).

Passive Design for Wide Signal Compatibility - Audio signals are routed passively through the IN3546R and the unit will accept virtually any audio signal input level. RCA female jacks are provided for all input and output connections.

Separate Left and Right Level Controls provided for each input channel can adjust the output signal from unity gain down to 5% of input voltage. This allows for calibration of output levels to compensate for the wide range of audio levels found in A/V equipment. Since the IN3546R is passive, the adjustment pots will provide signal attenuation only.

The unit's compact size, high performance, and automatic operation make it easy to integrate stereo audio-follow-video switching into many A/V installations. The IN3546R stereo audio switcher is an excellent choice for board rooms, training facilities, multimedia production systems, and any other production or presentation environment requiring audio-follow-video switching capability. Features:Adds Stereo Audio-Follow-Video Switching Capability to IN3500 Series RGB Video Switchers Automatically Switches to the Appropriate Input When an Input is Selected on the Attached RGB Switcher Receives Power from IN3500 Series RGB Switcher Compatible with Line Level and Mic Level Audio Signals Individual Left and Right Audio Level Controls for Each Input Durable Metal Case Enclosure - Unit Rack Mounts in 1U Space with Optional Rack Shelf Specs:  
INPUTS:
Connectors: Six Sets of 2 female RCA
Signal: Line Level. Selected channel is passive

OUTPUT:
Connectors: 2 female RCA
Signal: Passive unit with Gain adjustment

Gain: 1.0 (unity) to 0.05 (95% decrease)

GENERAL:
Frequency Response: 20 Hz to 20 KHz +/- 3dB
Signal to Noise Ratio: >80 dB
THD: Less than 0.1% from 20Hz to 20KHz
Switching Time: 2 mSec typical
Power Supply:

Powered by Inline switcher: +5 VDC
Powered by external source: 9 - 12 VDC, 200mA
Shipping Weight: 3 lbs. / 1.5 Kg
Product Weight: 1 lb. / .5 Kg
Dimensions: 1.65" x 8.5" x 6" / 4.2cm x 21.6cm x 15.2cm
Included Accessories: IN9112Control / Power Link Cable, Adjustment Tool
Optional Accessory: IN9133 Control / Power Link Cable with Loop