1-4
A
LPHA
4000 RBG MNS, P
O
E I
NSTALLATION
M
ANUAL
(PN 1776610301 R
EV
. A)
I
NTRODUCTION
Alpha 4000 RBG MNS PoE
Introduction
Temperature protection
The Alpha 4000 RGB sign includes automatic temperature controls to determine when the internal temperature of the sign
is too hot to continue normal operation. The temperature controls are based on the internal temperature of the sign, which
is influenced by the ambient temperature, the sign's display load, and the duration the sign is on.
If the internal temperature rises above the temperature limit, the LED output is forced into a reduced power mode which
dims the brightness of the LEDs. If the internal temperature rises above the highest limit, the display will blank to prevent
damage to the sign. If the temperature falls below the auto-dimming threshold level, then auto-dimming stops and the LED
brightness returns to normal level.
Item
Name
Description
Item
Name
Description
A
CEILING
MOUNT
ATTACHMENT
POINTS
Optional ceiling mount not
included. Attach hanging
brackets here (optional).
E
REAR ACCESS
PANEL SCREWS
6-32 tamper proof screws.
Removable with a T15 pin torx
driver (not included).
B
MICRO SD
CARD
ACCESS
PANEL
Removable panel to access
micro SD card.
F
RS485
KNOCKOUT
Knockout for RS485
communication (optional). One
located on rear and one on
bottom of unit.
C
REAR
BRACKET
MOUNT
Attach wall mounting brackets
at this location.
G
ETHERNET
KNOCKOUT
1/2 inch trade size knockout for
Removable panel to access
Ethernet or 24VDC power input.
One located on rear and one on
bottom of unit.
D
REAR
ACCESS
PANEL
Removable panel to access
Ethernet or 24VDC power
input and RS485
communication input
connections.
D
F
G
C
C
E
A
B
G
F
Top View
Back View
Bottom View
