Tektronix TDS500C Uživatelský manuál stáhnout pdf (Strana 111)

Performance Tests

TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications

1–95

Figure 1–46: Optical impulse response for OC–12 SONET Reference Receiver

NOTE. In Figure 1–46 the left cursor has been moved to the zero dB level. The

right cursor remains at the OC–12 data rate of 622 MHz "4 MHz (the delta

frequency is 584 MHz because the right cursor is no longer referenced to DC).

The delta attenuation from the zero dB level to the 622 MHz Cursor is 5.6 dB.

6. Repeat steps 5d through 5f, starting on page 1–93, moving the second cursor

to twice the bit rate (1.5 times the bit rate for the FC1063 standard).

7. For an exhaustive test of the reference receiver, repeat steps 5d through 5f for

each frequency shown in Table 1–10 for the standard.

8. If verifying additional standards, repeat this procedure for each standard.

1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 147 148

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Tektronix TDS500C Uživatelský manuál Strana 111