Panasonic KX-NS500 - Page 144

When you select E1 use
Indication Colour Description
STATUS Green Off : All Ports OUS or Fault
On: At least one port is In Service
Flashing (60 times per minute)
*1
: Master Clock (On)
*1
This can be set to indicate "Normal (a port is in use)" through system settings. For details, consult your dealer.
Maximum Cabling Distance of Extension Connection
The maximum length of the extension cable that connects the PRI port is shown below:
CAT 5: Under 200 m
144 Installation Manual
4.5.2 PRI30/E1 Card (KX-NS5290CE)