Viavi T-BERD MTS 5800, Руководство по началу работы

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Appendix A Specifications
MSAM specifications
T-BERD/MTS/SC Getting Started Guide
March 2018 22046537, Rev. 016 Page 179
Table 47 provides specifications for the clock input interface.
Clock output interface specifications
The clock output interface is a BNC connector that allows you to provide a clock for
interface timing from the MSAM.
Table 48 provides specifications for the clock output
interface.
Table 47 Clock input interface specifications
Item Description
Outer shell Ground
Inner conductor Clock input signal
Acceptable wave signals Square or sine waves
Minimum input 1.5 Vpp
Maximum input 5 Vpp with DC offset of 0 V
Termination 50 Ohm AC termination impedance
Frequency
1
1. Line interfaces may not operate properly if the external clock is outside the supported frequency range for the
interface.
5 Hz to 25 MHz
Async signal frequency 16 times the baud rate. For example, an external
clock generator set to 153,600 Hz results in a 9600
baud signal out of the MSAM.
Table 48 Clock output interface specifications
Item Description
Outer shell Ground
Inner conductor Clock output signal
Output signal
1
Minimum high level
Maximum low level
1. A limited current is supplied to protect against short circuits.
Square wave
From 25 MHz:
– 2 Vpp into a 50 Ohm (+/-1%) load
– 4 Vpp unterminated
600 mV when sinking 1 mA DC
Async signal frequency 16 times the baud rate. For example, an internally
generated line rate of 9600 baud causes a BNC
clock out signal of 153,600 Hz.