Quick Start Guide

12 PRO SERIES NEUTRON Quick Start Guide 13
Front Panel
Main elements of the NEUTRON front panel and PSU allocation.
(1) The DSP CONTROL panel shows the Ethernet
control activity and link status of each
tted module.
• • LED constantly illuminated = linked
• • LED ashing = data activity
(communication is good)
• • LED extinguished = bad/
nomoduletted.
(2) The PSU panel shows the status of the three
supply units and the three voltage rails.
Each of the three LEDs in the top row
represents a PSU. They illuminate when their
respective PSU is supplying power to the
unit after it has been switched on via the
D.C.POWER ON switch. During operation,
at least two of the PSUs must be supplying
power to the unit.
The bottom row of LEDs represent the three
voltage rails (+5 V, +3.3 V and +12 V),
whichare common to each PSU. Each LED
illuminates when its rail is live. When the
unit is powered, all three LEDs should be
illuminated; if not, see ’Voltage rail failure’ on
page 13.
(3) The SYSTEM CLOCK panel shows whether the
router is the source of the system clock
(MAST) or if the source is external (SLVE).
(4) The CTRL EXPANSION panel shows the status
of the external Ethernet connectors on the
rear panel.
• • O = not connected
• • On = connected
• • Flashing = active.
(5) The SNAKE panel shows the communication
status of the copper/optical cabling for both
the X and Y networks.
a. The OK LED (green) pulsates when the
link is synchronised between the router
and end point. A solid green LED indicates
a connection is present but not active.
b. The error LED (red) illuminates when
there are no communications or a fault
is detected.
(6) The SYNC SOURCE panel shows the
clocksource.
• • INT (internal) — clock is sourced
internally to the router
• • EXT (external) WORD — clock is
sourced from the word clock connector on
the rear panel of the router at 96 kHz
• • EXT (external) AES3 — clock is sourced
from the AES3 connectors on the rear
panel of the router at 96 kHz.
a
b
(1) DSP modules.
(2) Connector panel.
(3) Router panel.
(4) Mains input.
(6) (7) (8) (9) (10)
(1)
(5)
(2)
(3)
(4)
(7) The DSP ROLE STATUS panel has four sets of
LEDs, one per module, for monitoring their
module’s communication status. Each set
comprises a green OK LED and a red ERR LED,
which indicate the following:
a. Green OK LED constantly on = module
is receiving control updates from the
control centre.
b. Red ERR (error) LED constantly on = role
is muted/error condition. (The ERR LEDs
will illuminate briey as the role starts.)
(8) The two DSP AUDIO panels (link 0 and link 1)
show the status of the high speed audio
interconnect bus for each module.
• • Green OK LED illuminated =
communication is good
• • Green OK LED extinguished = bad/no
module tted
• • Red ERR (error) LED illuminated =
communication error.
(9) The internal and external AES50 audio panels
show the communication status of the AES50
audio connections of all modules.
• • Green OK LED pulsating =
communication is good
• • Green OK LED o = bad/no module tted
• • Red ERR (error) LED illuminated =
communication error.
(10) Cut-outs for rack mounting xings.
Rear Panel
(1) (2) (3)
(4)