Knox Video RS16x16HB User Manual

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KNOX VIDEO
RS16x16HB ROUTING SWITCHER

KNOX VIDEO

RS16x16HB ROUTING SWITCHER

Page 1

Page 2

SECTION 1. GENERAL INFORMATION

1.1 INTRODUCTION

The RS16x16HB routing switcher is a device which accepts up to sixteen video

inputs and up to sixteen stereo audio inputs (that is, sixteen channels of left and right
audio), and connects any one of the input channels (buffered electrically) to one or
more of the sixteen outputs.

1.2 TECHNICAL DESCRIPTION

The RS16x16HB uses a single chip microprocessor with backup battery to

drive three monolithic latching crosspoint decoders, one for video and one for
each channel of audio. The video channel features a driver stage with a gain of two
to drive a 75 ohm coaxial line. The audio is set up for high impedance balanced
inputs and outputs with a gain of one, or optional 600 Ohm balanced inputs and
outputs at up to +l6db.

Crosspoint information is collected by the microprocessor from either the front

panel keypad or from the RS232 port on the rear panel, and distributed to the
crosspoint decoders. Audio and video may be routed together or separately. The
microprocessor program activates an automatic lamp test at powerup or when the
lamp test is called by front panel keypad or RS232 port. Each time a routing command
is sent, the entire current routing map can be reported on the RS232 port.

1.3 DETAIL SPECIFICATIONS

Video Channels

Levels: 1 v. composite picture video or black burst: with a variety of

line resolutions including 525,625,825,875, and 1025, with a
variety of television systems including NTSC, PAL, SECAM,
and others

Frequency Response:

DC to 200MHz
@ 300mv, <-3dB @ 150MHz
@ 1.0v,<-3dB @ 115MHz

Input Impedance:

75 ohm

Output Impedance:

75 ohm

Crosstalk:

all hostile:

Typ <-70dB @ 5MHz
Typ <-55dB @ 20MHz
Typ<-25dB @ 100MHz

one hostile:

<-40dB @ 200 MHz

Audio Channels, Unbalanced

Levels:

2 v. unbalanced audio, including
voice, music, PCM, control rack, SMPTE
time code, and others

Frequency Response:

20Hz to 30KHz

Input Impedance:

l00 Kohm

Output Impedance:

1 Kohm

Crosstalk:

less than -85db @ 1KHz

Audio Channels, Balanced

Hum and noise:

<-90db

Frequency response:

20Hz to 50KHz +A ¼db

Level:

0, 4, or 16db, clipping at 18db

Impedance:

Bridging, or 600 ohm termination

Crosstalk:

<-90db ©20KHz

General

Connectors-Video:

(32) BNC or RCA (as specified)

Connectors-Audio:

(64) RCA (unbalanced)
Phoenix screwtype, removable (balanced)

Power Consumption:

nominal 15vdc, 1.5A (from plug-
in module supplied)

Power Connector:

5mm/2mm coaxial

Dimensions:

6U rack
19” wide x 10.5” high x 2” deep

Shipping Weight:

8 pounds

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