Protech Audio 697B - Manual (Page 2)

INSTALLATION
4- Unpack each individual card, inspect for shipping
damage, and assuming none is found, slide the card
half-way into the appropriate slot. After all cards have been
installed half-way into the card frame, plug in one card at a time
and turn on the power supply. Make sure no unusual loading is
noticed at the power supply. If loading is noticed, turn off the
power supply, unplug the card and recheck terminations. If no
loading is noticed, continue inserting each card in the card
frame, checking power supply loading as each card is plugged
in. When all the cards have been plugged in, the installation is
complete, and all that remains is the alignment.
The Model 697 does not require alignment. Operation of the
unit may be checked in the following manner.
1- Apply a signal representative of the actual signal level to
be used, to contacts 1 HI & 1 LO inputs.
2- While monitoring the output, ground switch #1. Check
for proper signal level at the output pins.
3- Repeat steps 2 & 3 for each switch channel on the
Model 697.
This completes the installation and alignment of your Model
697 Priority switching Card. The card(s) may be expected to
deliver years of uninterrupted service.
Page 2
ALIGNMENT
Note 1-
The alignment procedures for INTEGRA III SYSTEM cards,
differ from card type to card type. Therefore it is necessary
to consult the alignment procedure for each type of card being
installed, to properly align a card frame using different card
types.
The Model 697BB Priority Switching Card is designed to
be mounted in either the Model 857B or 858B Card Frame
Package.
Model 857B - is designed for use with 10 audio cards and
external power supply (Model 66708).
Model 858B - is designed for use with 9 audio cards, and one
plug-in power supply card (Provided).
The determination as to which backplane assembly to use
in your project, was made prior to our factory receiving the
order. The backplane assembly you have received will
accommodate the group of cards you or your designer have
specified.
The actual steps necessary for installation of the 697B Priority
switching card, are comparable to those necessary for any of
the INTEGRA III SYSTEM cards. They are as follows:
1- Mount the card frame in an appropriate EIA 19" width rack,
using 4 screws of sufficient tensile strength to provide secure
mounting.
2- A determination has been made as to which type of power
supply will be used on your system. Follow the instructions for
the type of power supply you will be installing.
EXTERNAL POWER SUPPLY. If an external power supply
is to be used, terminate the proper supply connections
to pins 1, 2, & 3 of the DC connector, as shown in the card frame
layout drawing Turn on the power supply, and using a DC
voltmeter, check for correct voltage and polarity at pins 1, 2, &
3 of of the DC cpnnector.
INTERNAL POWER SUPPLY. If a plug-in power supply card
is to be used, plug in the supply card, and check for proper
illumination of both plus and minus DC green LED's.
3- Terminate all audio input and output connections, using the
card connection drawing on the facing page. Shielded cable is
recommended for all audio connections.
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INTEGRA III SYSTEM
CONNECTOR DRAWING
MODEL 697B
Output LO
Output HI
GROUND
K1A N/O
K1A N/C
K1A Arm
Input 1 HI
GROUND
Input 1 LO
SWITCH 1
Input 5 HI
Input 5 LO
GROUND
Link Out
K1B N/O
K1B N/C
K1B Arm
Input 4 HI
Input 4 LO
Switvh 4
Input 2 HI
Input 2 LO
Switch 2
Input 3 HI
Input 3 LO
Switch 3
Link In
SWITCH 5
857B & 858B Backplane Connections
From Higher
Priority Level
Cards.
To Lower
Priority Level
cards.
NOTES:
INPUT #1 IS HIGHEST LEVEL PRIORITY
PROTECH ®