Sierra Video 161VS User Manual

MODEL 161 INSTRUCTION MANUAL

Contents

Specifications .............................................................................. Page 2

General description ..................................................................... Page 3

Installation................................................................................... Page 3

Circuit description, plug- in circuit module 503135 ................... Page 4

Circuit description, LED control panel 503138 .......................... Page 6

Circuit description, incandescent control panel 803139 ............. Page 6

Parts list, 503135......................................................................... Page 8

Parts list, 503138......................................................................... Page 9

Parts list, 503139......................................................................... Page 9

Schematic diagram, 503135 (3 pages) ...................................... Page 10

Schematic diagram, 503138 ...................................................... Page 13

Schematic diagram, 803139 ...................................................... Page 14

Component locations, 503135................................................... Page 15

Warranty statement............................................................... Rear cover

Warranty registration card....................................................... Attached

Note: The serial control option, if ordered, is covered by a separate instruction manual

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MODEL 161 INSTRUCTION MANUAL

Specifications

Video input characteristics

Nominal video level........................................... 1V p-p

Maximum video level..................................... 1.5V p-p

Impedance............................................................. 75 Ω

Return loss .......................................... 40 dB @ 5 MHz

Superimposed DC.............................................. +/- 5 V

Connector type...................................................... BNC

Video output characteristics

Nominal video level........................................... 1V p-p

Maximum video level..................................... 1.5V p-p

Impedance............................................................. 75 Ω

Return loss .......................................... 35 dB @ 5 MHz

DC on signal .................................................+/- 50 mV

Connector type...................................................... BNC

Video system performance

Nominal gain ....................................................... Unity

Gain adjustment range ...................................... +/- 2dB

Frequency response .......................+/- 0.1dB to 5 MHz

............................................+0 -1 dB 5MHz to 20 MHz

..........................................+0 -3 dB 20MHz to 40 MHz

Diff phase .............. 0.1 deg @ 3.58 MHz or 4.43 MHz

Diff gain....................0.1 % @ 3.58 MHz or 4.43 MHz

Crosstalk .........................60 dB @ 5 MHz (all hostile)

...........................40 dB @ 40 MHz (bracketed hostiles)

S/N .......................................................80 dB to 5 MHz

System delay......................................................... 20 ns

Input timing variation ....................................... +/- 1 ns

Switching point.................. first line after vertical sync

Vertical rate ..............................................25 to 200 Hz

Audio input characteristics

Nominal input level ..........................+8 dBm @ 600 Ω

Maximum input level......................+18 dBm @ 600 Ω

Source impedance............................................... 600 Ω

Input impedance .................................................30 KΩ

Common mode rejection ......................40 dB @ 60 Hz

Connector type........................................Terminal strip

Audio output characteristics

Nominal output level ........................+8 dBm @ 600 Ω

Maximum output level....................+18 dBm @ 600 Ω

Source impedance............................................... 600 Ω

Load impedance.................................................. 600 Ω

Audio system performance

Frequency response ................20 to 20 KHz +/- 0.1 dB

Bandwidth....................................................... 100 KHz

S/N .........................105 dB ref +18 dBm 20 to 20 KHz

Crosstalk ........................ 80 dB @ 15 KHz (all hostile)

IM and TDH ......... 0.05 % to + 18 dBm 20 to 20 KHz

Optional control panel

Cable type .......................................... DB9M to DB9M

Maximum length...................................... 200 ft / 60 M

Mechanical characteristics

Frame depth ............................................8.5" / 21.6 cm

Operating temperature range ....................0 - 40 deg C

Input voltage .................. 117 VAC +/- 10 % 57-63 Hz

....................................or 230 VAC +/- 10% 47 - 63 Hz

Power req............................................................20 VA

Weight ...................................................10 lbs / 4.5 Kg

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MODEL 161 INSTRUCTION MANUAL

General description.

The Model 161 is a 16 input video plus stereo
audio single bus switching system. It can be
configured with a variety of control methods:

• Local front panel pushbutton control with 16
relegendable LED illuminated switches.

• Remote control panel pushbuttons with 16
relegendable LED illuminated switches, including
15M interconnect cable. Cables up to 150M are
available.

• Remote control panel pushbuttons with 16
relegendable incandescent lamped switches,
including 15M interconnect cable. Cables up to
150M are available.

• RS232/RS422 serial control.
Multiple controlling devices such as remote plus
local panels, pushbutton plus serial, more than one
serial controller, etc. can be used.

The electronics for the SVS Model 161 are con­tained in a 1 3/4" high EIA standard 1 RU high
rack mountable frame. All the circuitry is on a
single plug-in circuit board.

Installation.

Carefully unpack the system. If any damage to
the unit is observed, immediately contact both the
shipping company and SVS.

The Model 161 produces almost no heat, so it can
be mounted next to other equipment without the
need to allow space for cooling. Its shallow depth
(8.5") allows the space behind the Model 161 to
aid in the cooling of deeper heat producing equip­ment above or below it.

Power supply.

Power for the Model 161 is provided by an exter­nal outlet mounted transformer (117VAC version
only). For 220VAC units the external transformer
has a short input cable to which the proper AC
input connector must be added. The output of the
transformer is a 2M (6ft) cable with a 3 pin
female DIN connector. This mates with the
corresponding 3 pin male DIN connector on the
rear of the Model 161 labeled "PWR."

Audio connections.

Audio connections on the rear of the Model 161
are made via terminal strips. Each input and
output signal consists of 3 connections: +, -, and
G for ground. The terminal strip design is a type
that directly accepts the stripped end of a wire
without attaching any type of lug to the end of the
wire. When using stranded wire it is easier to
handle the wire if the stripped end is tinned to
avoid stray strands from touching other wires.

If the audio source is unbalanced (one wire with a
shield), connect the single wire to the "+" terminal
and the shield to the "G" terminal. Leave the "-"
terminal open.

If the audio source is balanced with no shield,
connect the two wires to the "+" and"-" terminal
and leave the "G" terminal open.

Video connections.

The 16 video input BNC connectors each have an
internal 75 ohm 1% termination. Unused inputs
can be left with no connection.

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