ADTRAN MX3216 Specifikace stáhnout pdf (Strana 50)

MX3216 System Manual

4-6 61189008L1-1B

a. Install appropriate fuses in the slots in the fuse and alarm panel that services the MX3

chassis (see

Figure 4-5).

Figure 4-5. Fuse and Alarm Panel

b. Using a voltmeter, place the common (normally black) lead on the RET A post of the DC

power terminal block and the DC volts (normally red) lead on the

PWR A post of the DC

power terminal block. For a –48 VDC supply, the reading should be in the operating

range of –42 VDC to –60 VDC. For a ±24 VDC supply, the reading should be in the

range of ±22 VDC to ±27 VDC.

c. Repeat the above step for the

RET/PWR B connections.

d. Remove the fuses from the fuse and alarm panel servicing the MX3 chassis.

e. Install the protective cover over the power terminal block.

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ADTRAN MX3216 Specifikace Strana 50