Canopy
T1/E1
Multiplexer
June
2004
T1/E1
Multiplexer
Release
3.1
23 of 69
Figure 9: Master timing set to Loopback mode
Figure 9: Master timing set to Loopback mode
Recovered Timing Mode
Recovered Timing Mode
Recovered Timing Mode takes the incoming Ethernet bit stream from the BH link and
derives the clock signal from the incoming bit stream for the outgoing Receive clock (PBX
receive clock).
Recovered Timing Mode takes the incoming Ethernet bit stream from the BH link and
derives the clock signal from the incoming bit stream for the outgoing Receive clock (PBX
receive clock).
Figure 10: Slave timing set to Recovered mode
Network Timing Scenarios
Typically, when connecting two T-1 devices, one end is set as the master clock source
and the other end is set as the slave clock source. The slave device takes the timing
information from the master clock source. The slave device then synchronizes its clocks
with the master. This is shown in
Figure 11
.
Issue
1
Page
