ETC CEM3 v1.5.1 - Manual (Page 62)

56 CEM3 User Manual
Rear Panel
Dimmer Outputs
The dimmer outputs connect from the FDX3000 processor to the dimmer module trays.
They should generally be pre-configured from the factory. They are grouped in blocks of 12
dimmers, from A(1-12) through H(85-96).
Feedback
The feedback connections allow the FDX3000 to determine the status of voltage and
current for modules that support sensing. Again the two feedback connections should be
made from the factory.
15VDC
The 15VDC connection provides 15V power to the FDX dimmer modules.
Option Connector
The option connector allows field connection of the rack options such as panic (see page
35 ), stations (see page 15 ), and a remote beacon. For information on these connections,
see the termination markings on the rear of the FDX3000 carrier.
DMX Connections
The FDX3000 processor features DMX In and Thru connections on two industry-standard
5 pin XLR connectors. The two DMX ports, A and B, are fed to both of the redundant
processors.
Ethernet Connections
Two Ethernet connections are provided using Neutrik Ethercon connectors, which may be
either connected to a neutrik ethercon jack or a standard RJ45 connector. “Net A” connects
to the A (upper) CEM3, and “Net B” connects to the lower. The CEM3s feature an internal
switch allowing use of the rear and front panel Ethernet connections at the same time.
Power Input
The power input connector is a three phase supply, fed from the supply in the rack. The
FDX3000 processor will function regardless of any phase loss; as long as at least one
phase is still active the processor will still dim any dimmers which still have power.
Fuses
The power input has three panel-mount fuse holders to protect against internal failure. The
fuses should only be replaced with the same type, 2.5A 20mm.
DIMMER OUTPUTS
A B C D E F G H
DMX A DMX B
FEEDBACK
EXT
15VDC
NET A NET B
FUSES
POWER
Pa
ni
c R
etur
n
Pa
ni
c Se
nd
St
at
ion -
St
at
ion +
Gr
id
Pa
ni
c Out
Bea
con
+
24V
DC
Option Connector