Adtran MX410 Manuel D’Utilisation
MX410/MX412 System Manual
Turn-up
61189500L1-1B
PRELIMINARY 4-11
TURN-UP
The following sections provide turn-up steps for applying power and logging in to the MX410/
MX412.
MX412.
Power Up
To power up the MX410/MX412, perform the following steps:
1. Connect the MX410/MX412 to a reliably grounded –48 VDC or ±24 VDC source, which is
electrically isolated from the AC source.
NOTE
A readily accessible disconnect device, such as a rackmount fuse
and alarm panel that is suitably approved and rated should be
incorporated into the fixed wiring.
and alarm panel that is suitably approved and rated should be
incorporated into the fixed wiring.
The branch circuit overcurrent protection should be a slow-blow
fuse or circuit breaker rated 2 amps or greater.
fuse or circuit breaker rated 2 amps or greater.
a. Determine which fuse pairs are to supply power to the chassis.
b. Remove the fuses from the A and B slots for the pair.
c. Pull the power connector straight out from the back of the MX410/MX412.
b. Remove the fuses from the A and B slots for the pair.
c. Pull the power connector straight out from the back of the MX410/MX412.
2. Apply power and check voltages.
a. Install appropriate fuses (2 amp slow-blow) in the slots in the fuse and alarm panel that
services the MX410/MX412.
b. Using a voltmeter, verify that the operating voltage is within the specifications for A or
B power feeds.
The A and B input voltage power feeds specifications are as follows:
• –48 VDC systems: –42 VDC to –60 VDC
• –24 VDC systems: –22 VDC to –27 VDC
• +24 VDC systems: +22 VDC to +27 VDC
Place the common (normally black) lead of the voltmeter on the
The A and B input voltage power feeds specifications are as follows:
• –48 VDC systems: –42 VDC to –60 VDC
• –24 VDC systems: –22 VDC to –27 VDC
• +24 VDC systems: +22 VDC to +27 VDC
Place the common (normally black) lead of the voltmeter 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.
c. Repeat step
for the
RET B
/
PWR
B
connections.
WARNING
Installing the power connector at this stage provides power to the
MX410/MX412. The pins and connectors on the rear panel and
inside the chassis are powered. Exercise caution to avoid electrical
shock.
MX410/MX412. The pins and connectors on the rear panel and
inside the chassis are powered. Exercise caution to avoid electrical
shock.