Panasonic KX-NS1000 - Page 160

LINE LED Pattern
Layer 1 Layer 2
Master
Clock
LED Pattern
OFF OFF OFF
1 s
ON OFF OFF
1 s
ON ON OFF
1 s
ON OFF ON
1 s
ON ON ON
1 s
Layer 1: ON (Synchronous)
Layer 2: ON (Link established)/OFF (Link not established)
Master Clock: ON (Master)/OFF (Slave)
Maximum Cabling Distance of ISDN DSU Connection
The maximum length of the cable that connects the DSU and the PBX is shown below:
CAT 5: Under 1000 m
DSU
Point-to-Point
160 Installation Manual
4.5.2 SLC2/BRI4 Card (KX-NS0280)