ZyXEL Communications IP PBX X6004 - Manual (Page 46)

Chapter 1 Introduction
X6004 User’s Guide
46
1.4 LEDs
The figure below shows the LEDs on the X6004.
Figure 4 LEDs
The following table describes the LEDs.
PWR ALM
WAN LAN
SYS HDD
SYS
FXS
SYS
FXO
1 2 3 4
1 2 3 4
Table 1 LEDs
LED
COLO
R
STATUS DESCRIPTION
PWR Green On The X6004 is turned on.
Off The X6004 is off.
SYS Green Blinking The X6004 is rebooting and performing self-
diagnostic tests.
On The X6004 is on and functioning properly.
Off The power is off or the X6004 is not ready/
malfunctioning.
ALM Red On There is a hardware failure.
Off The X6004 is functioning normally.
HDD Green Blinking The X6004 is writing to the hard disk.
On The hard drive is installed and recognized by the
X6004.
Off The X6004 does not have a hard drive installed.
FXS, FXO, FXS/FXO, ISDN BRI Interface Card LEDs
SYS
Green On The interface card is functioning properly.
Off The interface card is off or is not recognized by the
X6004.
FXS 1~4,
FXS S1~S2 Green On The line is in use.
Off The line is not in use.
FXO 1~4,
FXO O1~O2 Green On The line is connected and receiving a signal.
Off The line is not connected.
ISDN BRI
1~4 Green On The line is connected and receiving a signal.
Off The line is not connected.
Blinking At least one ISDN connection is active.
ISDN PRI Interface Card LEDs
;LOS (Loss
of Signal)
Red On The line is down or not connected.
Off The line is operating properly.