Table 3-12 Led Functions - Toshiba Strata DK40 Installation & Maintenance Manual

RPTU ISDN Primary Rate Interface Unit
Figure 3-15

Table 3-12 LED Functions

LED
FSYC Frame Synchronization
ON: Frame alignment is lost.
OFF: Frame alignment is working properly.
AIS Alarm Indication Signal
ON: Receiving an alarm from the distant end, (All 1's).
OFF: Circuit is working properly.
RAB Remote Alarm
ON: Receiving a remote alarm from the distant end.
OFF: Circuit is working properly.
LOS Loss of Signal
ON: Incoming signal cannot be detected.
OFF: Circuit is working properly.
RST Reset
ON: CPU is resetting the software.
OFF: Circuit is working properly.
Strata DK40 I&M Manual Spring 1999
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
Not Used
FSYC
AIS
RAB
LOS
RST
BSY
TS
2747
RPTU LEDs and Connectors
Reset Switch (resets the software)
RS232C Connector for Call-Data Monitor (RJ12)
LEDs
RJ45 8-pin (shielded) Modular Connector (to CSU)
Functions
DK40 Universal Slot PCBs
3-33