SXT6051 STM-1/0 SDH Overhead Terminator
Table 8: Operating Mode Vs Output Clock Source Reference
Transmit
Frame
Parallel
Clock
Reference
output
Transmit
Frame
Serial
Clock
Reference
output
MSP & TSOH
Bus
Parallel
Clock
Reference
output
Telecom
Bus
Parallel
Clock
Reference
output
VC3/4 &
TPOH Bus
Clock
Reference
output
MHBCLKO
MICLK
MMSPPCKO
MTBCKO
TPOHCK
ADM
MHBCLKI
Not used
(tri-state)
MHBCLKI
Not used
(tri-state)
MTBCLKI
Protection Main
Parallel interface
(6.48/
19.44 MHz
± 20ppm)
(6.48/
19.44 MHz
±20ppm)
(6.48 MHz
±20 ppm)
ADM ➝ Protection Slave
Not used
(tri-state)
MHICLK
MMSPPCKI
Not used
(tri-state)
Not used
(tri-state)
Serial interface
(51.84 MHz
±20ppm)
(6.48/
19.44 MHz
±20ppm)
ADM
MHBCLKI
Not used
(tri-state)
MMSPPCKI
Not used
(tri-state)
Not used
(tri-state)
Protection Slave
Parallel interface
(6.48/
19.44 MHz
± 20ppm)
(6.48/
19.44 MHz
±20ppm)
1. In case of LOS, MHICLK can be used as a Blue Clock (see register 40H)
2. In case of LOS, MHBCLKI can be used as a Blue Clock (see register 40H)
42
LevelOne [ LEVEL ONE ]
