CopperOptics 150-1671-11, Руководство пользователя

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Revision 01 March 14, 1997 950-771-100
Page 12 PairGain Engineering - Plant Series PG-Plus PRL-771
6. Turn up and Testing
6.1 To turn up and test the PG-Plus system:
1 Open all the Protected Termination Module doors to ensure there are no off-hook conditions
present from the subscriber lines.
2 Remove the short from the HDSL Tip and Ring conductors.
The following start-up sequence should occur:
The COLU responds with start-up voltage immediately.
•
The PRL-771 detects HDSL line voltage, drops the metallic fallback to POTS, then initiates
the HDSL start-up sequence.
•
The POWER LED flashes green and the ACTIVITY LED is solid green.
Start-up is complete once the POWER LED is on solid green and the ACTIVITY and STATUS
LEDs are both off.
3 Close all the Protected Termination Module doors.
4 Follow standard POTS procedures to check the overall performance of the POTS channel
coming in and out, including ringing, dialing, and transmission. Use the customer's telephone if
possible.
7. Close the Housing
7.1 To close the housing:
1 Close the Telco Access door and secure its two tamper-proof screws.
2 Verify that the screws on the Telco Access door are completely seated to avoid interference with
the PRL-771 RT enclosure cover.
3 Close the housing cover and secure its tamper-proof screw.
Failure to close the PRL-771 Telco Access door or housing cover leaves the
PRL-771 interior exposed to the environment. This shortens the life span of the
PRL-771.