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USER GUIDE
Studio SLAVE Auxiliary Relay Pack
Version 1.3
DM Engineering
2174 Chandler St.
Camarillo, CA 91345-4611
805-987-7881 800-249-0487
www.DMEngineering.com
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Overview and Operation:
The Studio "SLAVE" Auxiliary Relay Pack is a microprocessor based switching and
control interface for various switching functions required in most broadcast studios
and control rooms where multiple and various isolated outputs are required to
operate from one or more types of control inputs. Input and output connectors are
Eurostyle pluggable types. Some outputs have user selectable provisions for release
delay times from instantaneous to one second, and selection may be made to
restrict the release delay to the Solid State Relay output driver voltages exclusively.
LED power and activation indication is provided as well as a "test" button for
activation of the unit locally.
The Studio SLAVE Auxiliary Relay Pack has the following features:
Outputs:
- Relay outputs: 8 form C (SPDT) bifurcated gold overlay, silver nickel isolated
contacts for switching functions ranging from low level audio up to 2 amps,
AC or DC. (Refer to Specifications section on page 4 for details). Circuits 1-4
follow input commands while the release time of circuits 5-8 may be delayed
up to 1 second if desired.
- Solid State Relay driver voltages (5VDC): Current limited simultaneous
constant and flashing (1 sec on, 500ms off) driving signals for remote control
of the available DM Engineering Solid State Relay Pack or the users own
solid state relay for "ON AIR" or "RECORDING" signs or any other
appropriate application.
- Tally output: : An optically isolated floating NPN transistor output for
controlling other tandem "SLAVE" units or any other appropriate application.
- 9-12 VDC: Unregulated supply voltage up to 350MA for utility use such as
external lamp or LED illumination.
Control Inputs: (any or all inputs can be used simultaneously)
- Latch on: A momentary contact closure between the Latch On terminal and
the Common terminal will activate the unit.
- Latch Off: A momentary contact closure between the Latch Off terminal and
the Common terminal will deactivate the unit.
- Continuous: A contact closure between the Continuous terminal and the
Common terminal will activate the unit. Removal of the contact closure will
deactivate the unit.
- 5-30VDC Continuous: Allows for the application of 5-30 Volts DC between
the input and common terminals to activate the unit. Removal of the voltage
will deactivate the unit.
- Mic-Pro input connector for interface with the DM Engineering Mic-Pro
microphone on-off controller module.
- Release Select: User configurable release times for relay output circuits 5-8
and SSR relay driver voltages. (Relay output circuits 1-4 and Tally output
follow the input commands without delay). The Release select function may
be restricted to the SSR driver voltages only if desired. Approximate selection
times are; Normal (2ms), 250ms, 500ms, or 1 sec. Delay selection may be
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desirable when staff tend to barge through studio doors or start talking as
soon as the “On Air” sign goes off or the monitor speakers come on.
Installation:
Connect the supplied power supply to the power input connector. The LED
indicator will light green to show power is present.
1. Momentarily press the test switch to check for proper activation of the unit.
The LED indicator will light amber to signify activation, and a faint clicking
noise will be heard as the relays activate and deactivate. This switch may be
used at any time for operational test of the unit without having to activate
other input controls.
2. Delay selection may be made, if desired, by moving the jumpers on the
“Release Delay Select” connector to the appropriate positions. “SSR Only”
selection applies delay time to the Solid State Relay driver voltages only.
Example: Delay select jumpers shown for 1 sec. delay and Solid State Relay
drive voltages only.
3. Connect the desired input control contact closures or DC input voltage
between the appropriate “Control Inputs” terminals and any common terminal.
Any or all of the “Control Inputs” may be used simultaneously.
4. Connect the desired “Relay Outputs” connections to the appropriate SPDT
relay terminals. Remember, circuits 1-4 are not subject to any delay
selection.
5. Connect any desired “Outputs” connections such as tally or SSRP driver
voltages.
6. Connect the Mic-Pro mini-din connector if the Mic-Pro module is used.
NOTES:
1. If the Mic-Pro microphone on-off switching module is installed, the available
CIRCUIT 1 contacts will have 12VDC present and should not be used.
2. It is also not recommended that composite signals be switched using the
Circuit 1 contacts.
3. SSR continuous and flash modes provide 5VDC driver voltages to the
available DM Engineering Solid State Relay Pack, or any other customer
provided solid state relay that operates in the 5VDC input voltage range.
4. Tally plus and minus are isolated by optically coupled NPN transistor outputs
capable of sinking 50 ma with a maximum VCEO of 70VDC.
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Warranty Information:
The DM Engineering Studio SLAVE Auxiliary Relay Pack is warranted for a period of
one year from the date of purchase. This warranty covers materials and
workmanship only. Any misapplication, physical or electrical damage from outside
sources or by the customer is not covered. The customer must pay shipping costs
to the factory, and DME will pay shipping costs to return the warranted equipment to
the customer. Any priority shipping costs are to be the responsibility of the customer
as ground service is standard. Please contact the factory for an RMA number prior
to any returns. Items returned without an RMA may be sent back to the customer
unopened.
Technical Support
If you have questions, experience difficulties with the product or require further
information please contact DME at: 805-987-7881, toll free at 800-249-0487, or Email technical support at: support@dmengineering.com, or visit
www.dmengineering.com for the latest User Guide.
Specifications:
Case dimensions: 7" wide X 6" deep X 1.25" high
Case material and color: ABS plastic, bone grey
Input & output connection method: Eurostyle removable connectors
DC input connection method: 5 x 2.5mm coaxial power connector, polarity
insensitive
DC input power requirement: 9-12VDC @ 350-500 ma.
Power Supply: 9VDC @ 350-500ma “wall wart” type (supplied)
Tally input to output isolation: 4000 V
Relay contact material: Bifurcated gold overlay, silver nickel
Relay contact maximum typical switching current: @30VDC-2.0A, @ 125VAC-0.20A
Absolute maximum switching voltage: 125VDC, 125VAC (0.20A max.)
Relay isolation voltage between contacts and coil: >1800 VRMS
Available release delay times: None, 250ms, 500ms, 1 sec.
Mic-Pro interface connector: Mini-din 8
Mounting: Desktop or any surface that the customer desires
Operating temperature: 32 to 120F
Humidity: 0 to 95% non-condensing
Shipping Weight: 2 lbs. (approximate)
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