2.3 Information about the Trunk Cards
62 Installation Manual
Layer 1: ON (Synchronous)
Layer 2: ON (Link established)/OFF (Link not established)
Master Clock: ON (Master)/OFF (Slave)
Maximum Cabling Distance of S0 Bus Connection
The maximum length of the extension cable that connects the Hybrid IP-PBX and the ISDN terminal
equipment (TE) is shown below:
ON ON OFF
ON OFF ON
ON ON ON
Layer 1 Layer 2 Master Clock LED Pattern
1 s
1 s
1 s
CAT 5: Under 1000 m
TE
Point-to-Point
Expansion
Point-to-Multipoint
Point-to-Multipoint
TE 1 TE 8
TE 8TE 1
CAT 5: Under 150 m
CAT 5: Under 500 m CAT 5: Under 50 m
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