Philips SOPHO 2000 IPS User Manual page 291

Lamp Indications
LAMP
COLOR
NAME
RUN Green
LC Green
LPB Green
PCM Red
MFRM Red
FRM Red
MRMT Red
RMT Red
CRC Red
AIS Red
BL Red
NOTE: The following table shows the lamps of PN-DTB card used for T1/E1 interface.
LAMP
RUN
LC
LPB
PCM
MFRM
FRM
Flashes at 120 IPM while this card is operating normally.
Remains lit when communications are normally ongoing with the D
channel data links connected.
Remains lit when loopback test is in progress.
Remains lit when detecting PCM signal loss.
Remains lit when detecting Multi-Frame Alignment signal loss on time
slot 16 (Only for E1).
Remains lit when detecting Frame Alignment signal loss.
Remains lit when receiving the alarm from a distant office because
Multi-Frame Alignment signal loss has been detected at the distant
office (Only for E1).
Remains lit when receiving Frame Alignment signal loss alarm from a
distant office.
Remains lit when detecting Cyclic Redundancy Checking (CRC) errors
(Only for T1).
Remains lit when a pattern of consecutive "1" is received.
The distant office transmits this signal for a loopback test.
B channel status
ON
OFF
Flash (60 IPM) : Only one channel is busy
Flash (120 IPM): 2 through 10 channels are busy
PRT (T1) PRT (E1)
×
×
×
×
×
×
×
×
×
–
×
×
FUNCTION
: More than 10 channels are busy
: All channels are idle
LAMP
MRMT
RMT
CRC
AIS
BL
– 277 –
PN-DTB (PRT)
×: Used –: Not used
PRT (T1) PRT (E1)
×
–
× ×
×
–
× ×
× ×
NWA-008852-001 Rev.5.0
JULY/13/2007
98ch4002.fm