Specifications

Chapter 2 Installation and Setup FibeAir 4800 Installation and Operation Guide
2-22 FibeAir 4800 Installation and Operation Guide
Table 2-2. TDM Clock Modes
Unit clock mode User equipment side
Local Unit Remote
Unit
HQ side Branch side
1 Transparent Transparent Internal/Recover Internal/Recover
2 Loop Time Recover Internal Recover
3 Recover Loop Time Recover Internal
4 Internal Recover Recover Recover
5 Recover Internal Recover Recover
Transparent/Transparent
FA4800 transparently regenerates the clock from line clock side to Tx
clock on the opposite side of the link.
Loop time/Recover
The local unit receive clock is the transmit clock on both sides of the link.
Recover/Loop time
The remote unit receive clock is the transmit clock on both sides.
Internal/Recover
The local unit internal oscillator generates the clock while the remote unit
recovers this clock.
Recover/Internal
The remote unit internal oscillator generates the clock while the local unit
recovers this clock.
•
The Line code option is used with T1 Systems.
Note