___________________________________________________________
CXR Larus 80-100-400 Issue 2 July 2006 page
3-20
c. Error conditions in invalid output state:
O. Overflow
|
Exit follow mode; unable to phase align.
U. Underflow
|
Input frequency is too far off.
3.3450 Card
Power:
-48 volts, 1.2 amp (nominal) when cold,
0.15 amp (nominal) after warmup (5 minutes)
3.3451 Power
Fuse:
2 amps, Type GMT
3.3452 Fuse
Alarm:
Closure to battery
3.35
Model 54523 Stratum 2/TNC Track and Hold Clock Card
3.351
For an illustration of the Model 54523, refer to Figure 3-5.
3.3521 Provisioning:
Model 54523-3 supports the AB input architecture.
3.3522 Input
Signals:
a. DS1
Inputs
Recovered clock from 54511 input cards, nominal 1.544 MHz, tracks within
±7.7 x 10
-2
Hz.
b. E1
Inputs
Recovered clock from 54512-4 input cards, nominal 2.048 MHz, tracks
within ±9.4 x 10
-2
Hz.
c. 2048 kHz Inputs
Recovered clock from 54512-3 input cards, nominal 2.048 MHz, tracks
within ±9.4 x 10
-2
Hz.
d. Composite Clock Inputs
Recovered clock from 54513-3 input cards, nominal 64 kHz, tracks within
±9.4 x 10
-2
Hz.
e. 5 MHz Inputs
Recovered clock from 54513-4 input cards, nominal 5 MHz, tracks within ±
23 Hz.
f. 10 MHz Inputs
Recovered clock from 54513-5 input cards, nominal 10 MHz, tracks within
