Symmetricom 58502A Manuel d'utilisateur télécharger pdf (Page 33)

Chapter 2 Performance Tests

58502A Operational Verification

User’s Guide 2-7

Alarm and Status Output Verification

1 Connect the equipment as shown in Figure 2-2, using output 12 as the

test output. (Note that any one of the outputs can be used for this

alarm verification.)

Figure 2-2. Alarm/Status Output Verification Setup

2 Verify the ALARM/STATUS output function by shorting to ground any

of the outputs (1-12). Let’s use output 12 as shown in Figure 2-3.

Figure 2-3. Output 12 Grounded

3 Observe that the front-panel Alarm indicator illuminates and the

ALARM/STATUS output pins (2, 3, and 4) go active (TTL low,

approximately 20 mV).

Figure 2-4 shows the output pins (2, 3, and 4) and ground pins (1, 5,

and 9.

58502A

Distribution

Amplifier

HP 8663A

Sythesized Signal Generator

or equivalent

Output

N-to-BNC

Connector

(1250-0780)

Input

A or B

123456789101112

5 VRMS MAX

100-240 VAC 50/60GHz

40 VA Max

BNC Cable

1 2 11 12

OUTPUTS

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 87 88

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Symmetricom 58502A Manuel d'utilisateur Page 33