Harris Legacy 99-1300-0, Руководство по эксплуатации и техническому обслуживанию

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Revision B • 1/03
H A R R I S C O R P O R A T I O N
2-12
2 Installation
MODULE QUICK GUIDES
Pages 2-16 to 2-49 have Quick Guides to con-
figuring each module’s logic connections and DIP
switch settings. Each guide includes the audio and
logic connector pinouts and signal descriptions,
DIP switch setting definitions and, for some mod-
ules, logic block diagrams.
Module Quick Guides:
• Mic Preamp : pages 2-16 & 2-17
• Universal Input : pages 2-18 to 2-21
• Telco/Codec : pages 2-22 to 2-25
• RLS : pages 2-26 & 2-27
• Meter Switcher : pages 2-28 to 2-30
• Control Room : pages 2-32 to 2-37
• Studio : pages 2-38 to 2-45
• Output 1 : pages 2-46 & 2-47
• Output 2 : pages 2-48 & 2-49
Pages 2-50 to 2-55 show examples of typical
logic connections to the Universal Input module
for a mic remote control panel, a CD player, and a
digital delivery system.
Note:
To completely isolate the console from the
peripheral device, use only the opto-isolated con-
trol input and output connections since the Logic
Ground and Logic 5VDC connections are
referenced to the console’s logic power supply and
ground.
Connect these only to isolated devices, such as
a mic control panel or other Harris Accessory
Panel. Connecting the logic ground to a non-
isolated peripheral device can result in a ground
loop between the console and the peripheral
device.
UNIVERSAL INPUT LOGIC INTERFACE
A block diagram of the Universal Input module
logic interface is shown on page 2-13. Logic out-
puts (shown on the right side of the illustration)
are isolated from the peripheral device by six solid-
state “relays.” The “relay contacts” can switch logic
voltages up to 60 volts at 350 mA.
Pressing the On button generates a 220 ms con-
tact closure from pin 5 (Start Command Pulse). A
sustained contact closure while On is available on
pin 23 (Start Command Sustained). It stays closed
as long as the module is On. Pressing the Off but-
ton generates a 220 ms closure from pin 4 (Stop
Command Pulse). These three command outputs
are tied together at pin 13 (Command Common).
Module DIP switches DS2-2 (for the A input)
and DS4-2 (for the B input), set whether a single
pulse is output when the module status changes
(Off to On, or On to Off), or if each additional
press of the On or Off buttons produces another
contact closure. The default setting (switch 2 set
to OFF) is a single contact closure. When DS2-2
or DS4-2 is set to On, then each additional press
of the On or Off button produces another 220 ms
contact closure.
The remaining outputs; Logic Active/Cue Tally
[pin 15], On Tally [pin 17], and Off Tally [pin 16],
are tied together at Tally Common [pin 14]. They
present sustained logic outputs for each function.
There are six logic inputs on the left side of the
illustration: Reset/Talk to Studio, Ready/Talk to
External, On, Off, Cough, and Talk to Control
Room/Ext. Cue. These inputs are opto-isolated and
current limited so any logic voltage from +5 to
+40 VDC can be used.
Reset/Talk to Studio, and Ready/Talk to Ex-
ternal have both high (+) and low (-) input pins so
that either polarity logic can be used. The other
inputs use active low logic (pull to ground) that
typically come from a mic control panel (although
On and Off could be triggered by a peripheral