Knox Video RS8x8HB - Manual (Page 4)

KNOX VIDEO
RS8x8HB ROUTING SWITCHER KNOX VIDEO
RS8x8HB ROUTING SWITCHER
Page 3 Page 4
SECTION 2. INSTALLATION
WARNING!
Static Sensitive Connectors! During the installation process and whenever changing
cables to the Knox RS8x8HB inputs and outputs, use extreme caution to avoid conducting
static electricity to any inputs or outputs including video, audio, and RS232.
DC Offset Warning! Connect standard video and audio inputs and outputs only. Do not
connect input or output signals with a positive or negative dc offset.
Chassis Ground is Earth Ground. Do not connect video or audio cables with induced or
direct-connection potential on the shield.
2.1 INTRODUCTION
This section provides the information required for installation of the RS8x8HB
into its operating environment.
2.2 UNPACKING AND INSPECTION
Unpack the RS8x8HB carefully and verify that the serial number matches the
number quoted on the packing list. Before installing it into a system, check the
outside of the unit carefully for signs of damage and check that none of the fasteners
have come loose. Check that the power module is also present and marked for use
with the RS8x8HB product. Units are shipped with a memory backup battery which
retains the routing crosspoint information when power is off. The battery is mounted
on the main printed circuit board visible through the rear cover. In the event that
crosspoint information is not retained during power off, the battery must be replaced.
It is recommended that the battery be replaced after five years.
2.3 INSTALLATION
The RS8x8HB is designed to be mounted in a standard 19" rack panel; it is 5.25
inches, or three standard units, high. Choose a space in the rack which is convenient
for all the cables and mount the unit using standard rack bolts. Connect the output
of the RS8x8HB power unit to the power connector at the right rear (as viewed from
the back of the panel) of the RS8x8HB and plug the power unit into a grounded AC
power outlet of the voltage and frequency specified on the power unit. There is no
power switch on the RS8x8HB; it is designed to be ON at all times. (If it is desirable
to have the RS8x8HB powered down regularly, connect the power module to a
switchable AC power strip.)
2.4 VIDEO CONNECTIONS
Connect up to eight video sources (cameras, videocassette players, RF
demodulators, still-stores, character/graphics generators, etc.) to the input BNC
connectors marked VIDEO INPUT (or RCA connectors, if they were specified).
Inputs are automatically terminated in 75 ohms.Terminate unused outputs in
75 ohms.
Connect up to eight destination devices (monitors, VCRs, LCD projectors,
displays, RF modulators, etc.) to the eight BNC (or RCA) connectors marked VIDEO
OUTPUT. Be sure that all destination devices are terminated at 75 ohms.
Do not connect a SOURCE of video to any of the video OUTPUT connectors.
2.5 AUDIO CONNECTIONS
Connect up to eight audio sources (line level mikes, videocassette players, RF
demodulators, tape/CD players, etc.) to the left and right channel connectors marked
AUDIO INPUT.
Connect up to eight audio destination devices (amplifiers, VCRs, tape/CD
recorders, RF modulators, etc.) to the eight left and right channel connectors
marked AUDIO OUTPUT.
Do not connect a SOURCE of audio to any of the audio OUTPUT connectors.
For balanced audio units, the Phoenix connectors may be removed while
making the screw connections.
When installing balanced audio connections, use the center pin for the common
or ground wire. The top or bottom pin may be used for either + or-, however the
connections must be consistent throughout.
2.6 SETTING THE BAUD RATE
If the RS8x8HB is to be controlled through its RS232 port, it is important to
set the correct baud rate. One of four baud rates may be selected using position
1 and 2 of the programming switch located on the rear panel of the RS8x8HB. Set
the switches as follows:
C
Phoenix connector
for Balanced
Audio