Abstract: Appl
ication No
te 354 provides a
logical diag
ram of the clock map of the Dallas Semiconductor/
Maxim DS2154 and DS2152 single chip transceivers (SCTs).
Figure 1 logically describes the clock map of the DS2152 and DS2154 Single Chip Transceivers. Although there is only one Jitter Attenuat
or, which
can be pl
aced in the receive or transmit path, two are shown for
simplification and clarity.

Figure 1. Clock map.
Notes
The PAYLO
AD loopback switch is not included on the DS2154
.
| LTCA = Long Term Clock Average |
|
| |
RLB = Remote LoopBack |
JAS = Jitter Attenuator Select |
| |
FLB = Framer LoopBack |
DJA = Disable Jitter Attenuator |
| |
PLB = Payload LoopBack |
RCL = Receive Carrier Loss |
| |
LLB = Local Loopback |
LOTCMC = Loss Of Transmit Clock Mux Control |
|
| RXCLK = Recovered clock from LIU |
|
| TXCLK = Transmit rate clock for LIU |