CommScope ATC300-2000 - Manual (Page 25)

ATC300-1000/2000 Teletilt ® RET System Section 1–System Description
Bulletin 639544 • Revision L August 2014 1-9
When a short has been detected and power turned off to a port, the software will attempt to
reactivate that port 3 times. If the condition persists, the port will be blocked from being powered
without operator interaction. This error condition is reflected with an alarm logged in the controller’s
Alarm History. The blocked condition can be cleared in one of two ways – by cycling power on the
unit, or by selecting the button “Clear Locked Data Ports” on the Controller Config web page (see
Figure 1-10a Clear Locked Data Ports). The operator should ensure that the condition causing the
short has been remedied before clearing the block.
Figure 1-10a Clear Locked Data Ports (ATC300-2000 only)
The ATC300-2000 will tolerate a total current level in the 2.0 Amp to 2.5 Amp range for 4 minutes. If
that current level is maintained longer than 4 minutes, the software will remove power to the modem
or AISG port reporting the greatest current level. Unlike the short condition, no attempts will be
made to re-power the port after this condition has occurred, the port will immediately be put in a
blocked state. The blocked condition can be cleared as described above.
The current levels of each modem port and the AISG port may be viewed on the controller’s Help | About web
page. The page must be refreshed to update the readings.
All operation is considered normal when the total current load is less than 2.0 Amps. Note: After an
overcurrent condition has been recognized, the total current level must be in the normal range for 10 seconds
before the overcurrent alarm is cleared.