RMD-01 - Elan Audio
RMD-01
RACK MOUNT PROGRAM SWITCHER
WITH LOCAL AND EXTERNAL CONTROL
The RMD-01 Program Switcher is a versatile program switcher provided with 4 balanced Stereo inputs and 1 balanced Stereo
output. The RMD-01 is designed primarily as a simple and economical mini Delegation Switcher for use in Commercial and
Community Radio Broadcast Stations but has many other potential applications.
The RMD-01 has a built in AC power supply and is constructed as a self-contained 19” rackmount unit occupying 1 RU of rack
space. All audio inputs are Differential Balanced and Bridging. Line outputs are Differential Balanced.
The RMD-01 is extremely versatile and has as standard 5 distinct functional modes of operation set internally by moveable links
and controlled by a PIC microprocessor. Audio Switching is arranged to allow mixing as well as excluding operations (1 input
active at a time).
In addition a 4 position DIP switch accessed from the rear panel will program the RMD-01 to switch or default to a particular input
or combination of inputs to the output on power-up. This is a particularly useful feature for Radio Stations operating an unattended
automation program where a temporary mains power failure could upset pre-set switch conditions and cause loss of program
when mains power is returned.
Control is direct from the front panel mounted push-button switches on the RMD-01 and by external control switches connected to
the unit via the rear panel mounted female D connector. External remote control from a PC via a suitable interface, other digital
equipment or Time Clocks is also possible. Control inputs are effectively in parallel with the front panel switches polarised to 12V
DC and are active low.
Indication of switched status is shown by LED’s on the front panel switches and also appears on relay contacts on the rear panel
D connector. The relay contacts switch to ground to indicate an active audio input.
TECHNICAL SPECIFICATIONS
Inputs:
Output:
In/Output Connector:
Remote Connector:
Operating Level:
Freq Response
THD:
Signal to noise:
Off Isolation @ 20 KHz:
Crosstalk @ 20 KHz:
Power supply:
4 Stereo; Differential Balanced Bridging
1 Stereo; Differential Balanced 50 Ohms
DB25 female
DB25 Male
Nominal +4 dBu. Maximum + 26 dBu (Clip Level)
+0 –1 dB 10 Hz to 80 KHz
0.01%
105 dB WRT +12 dBu 20 Hz to 20 KHz
80 dB
Left to Right 71 dB Right to Left 75 dB
230-250 V AC 50 Hz 15 VA
DESIGNED & MANUFACTURED IN AUSTRALIA BY
ELAN AUDIO
2 Steel Court, South Guildford, Western Australia
P: 08 9277 3500 F: 08 9478 2266
www.elan.com.au sales@elan.com.au
INPUT-2
INPUT-3
RMD-01 4 input Stereo Program Switcher
Front and Back view
INPUT-1
1234
DEFAULT
SET
INPUT-4
SWITCHER CONTROL
PROGRAM SWITCHER
RMD - 01
AUDIO IN - OUT
AUDIO
Suggested applications for RMD-01
as Delegation Switcher
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