DA-14 User Guide
Page 12
Closing the Module
Use the following steps to close the DA-14 module:
1. Ensure that product label is on the bottom.
2. Carefully slide the internal circuit board and rear panel assembly through the housing. If
BNC connectors are present, keep the case horizontal so that the bushings stay with the
connectors.
3. If required, replace all BNC nut(s) and associated lock washer(s) on the front panel of the
module.
4. Replace all Philips XLR mounting screws on the front panel of the module.
5. Replace and tighten the four Phillips screws on the rear corners of the module.
CAUTION
Do not over tighten the screws.
External Power
About Power Supplies
An external power supply conforming to the specifications listed in the following “
Power Supply
Specifications
” section
must be used
to guarantee that published SoundPals performance
figures are met. Any power supply meeting these specifications will supply adequate power for a
single SoundPals module. Although the specification is written for power supplies running from
AC line inputs, DC (battery) sources may be used if they meet all of the listed requirements.
CE Compliance
For CE compliance, the power supply that you use
must comply
with the following requirements:
•
Low Voltage Directive 73/23/EEC
•
EMC Directive 89/336/EEC
•
EMC Directive 93/68/EEC
•
The connector locking ring must be tight.
Portable Power Sources
For portable SoundPals power sources, sealed lead-acid, nickel cadmium or alkaline primary
batteries may be used. However, the maximum voltage must
not
exceed 8.6 volts, and a
minimum of 5.6 volts is required for normal operation. Maximum current drain will be 402 mA.
Power Supply Specifications
The following specifications must be met over all anticipated operating conditions including AC
power line range, temperature range, etc.
Parameter
Specification
Output voltage
5.6 V minimum (measured at trough of ripple) at 402 mA constant current.
8.6 V maximum (measured at peak of ripple) at 262 mA constant current.
Ripple voltage
2 V p-p at 700 mA constant current.
400 mV p-p at 700 mA constant current with external 2200
µ
F capacitor.
Connector Switchcraft
761K
with
center positive, sleeve negative.
Summary of Contents for DA-14
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