User's Manual

30 DL251 Audio System I/O
MUSIC Group IP Limited
DL251/DL252 Rear Panel
4. Rear Panel
1 Unit serial number label.
2 Ventilation grills, which provide an air outtake for fan
cooling of the inside of the unit.
3 Male XLR chassis connectors, which provide outputs
for line equipment. Each socket has a red LED that illuminates
when mute is on for that output.
4 Female XLR chassis connectors, which provide inputs
for mic/line equipment. Each socket has a red LED that
illuminates when +48V phantom power is on for that input.
5 The diagnostics connector is a 9-way D-type
connector for connecting a laptop/PC by service personnel for
diagnostics purposes. This is not an operator function and
is only to be used by service personnel.
6 The MUTE button mutes all the outputs simultaneously
when held down for longer than one second. It has an integral
LED that illuminates when mute is active.
7 The boot mode switch selects between normal
operation and a service personnel-only configuration boot
mode. It has an adjacent red LED, which illuminates to show
when the unit is in service only configuration mode.
8 There are three MIDI (musical instrument digital
interface) sockets — MIDI in, MIDI out and MIDI thru — for
connection of a MIDI device, such as a synthesiser. The MIDI
in socket receives MIDI data, and the MIDI thru socket gives
out the same MIDI data that is received by the MIDI in socket.
The MIDI out socket gives out MIDI data generated by the
attached Midas Digital Console.
100-240V AC~50-60Hz 150W (x2)
SUPPLY VOLTAGE
Warning: Both supply cords must be unplugged to ensure
complete de-energization of the equipment.
Attention: Les deux câbles d'alimentation doivent être
débranchés afin d'assurer la déconnection complète de l'équipment.
1
AES50
audio
MIDI
in
MIDI
out
MIDI
thru
2
AES50
audio
3
AES50
audio
Ethernet
control
DESIGNED AND ENGINEERED IN ENGLAND
MADE IN CHINA
all
boot
mode
diagnostics
MOUNT IN RACK ONLY
N’ASSEMBLER QUE DANS UN RACK
REFER TO ADDITIONAL SAFETY
INFORMATION ON TOP COVER
SE REFERER AU SUPPLEMENT
SUR LE COUVERCLE SUPERIEUR
D'INFORMATION DE SECURITE
MUTE
ABCDEFAB
19
210
311
412
513
614
715
816
19
210
311
412
513
614
715
816
1725
1826
1927
2028
2129
2230
2331
2432
3341
3442
3543
3644
3745
3846
3947
4048
OUTPUT LED = ‘MUTE’ STATUS INPUT LED = ‘+48V’ STATUS
65
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10
1
11
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3
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6
7
8
9
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11
EN