CopperOptics 150-1396-03 Panduan Referensi Cepat - Halaman 2

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Installing and Testing the FSU-796 List 3
The COT shelf power must be connected to provide -48V to the FSU-796 List 3.
1
Slide the FSU-796 List 3 into the line unit slot to be tested. (Refer to the illustrations below for line unit
locations.)
2
Verify that the -48 CO LED is lit. If the -48 CO LED is not lit:
• verify that the fuses are installed in the equipment bay's fuse panel.
• verify that frame ground and CO battery are connected (refer to local practices).
• replace the FSU-796 (streaker card).
3
Press the TEST switch and verify that all Tip and Ring LEDs are lit. Replace the FSU-796 if any of the
LEDs do not light.
.
19" Central Office Shelf
23" Central Office Shelf
Testing the Line Unit Slots
1
At the MDF, connect a jumper lead from frame ground to the appropriate Tip or Ring termination from the
COT shelf. Verify that the corresponding Tip or Ring LED on the FSU-796 is lit. (Refer to Table 1, "19"
Shelf System Connectors,"and Table 2, "23" Shelf System Connectors.")
• If the correct Tip or Ring LED lights, proceed to the next connector termination.
• If the Tip or Ring LED under test does not light, check the wiring to the COT shelf.
• If the wrong LED lights, check the wiring to the COT shelf.
2
Repeat the previous step for each line unit Tip and Ring termination.
Table 1. 19" Shelf System Connectors
Connector
System 1
System 2
HDSL
P5
P7
BYPASS
P10
P20
POWER_OUT
P8
P9
Table 2. 23" Shelf System Connectors
Connector
System 1
System 2
HDSL
P5
P6
BYPASS
P13
P14
POWER_OUT
P9
P10
Table 3. Line Unit Connector Definitions
*
System
Connector
Function
System n
HDSL_n_T1
Tip and Ring terminations for HDSL Pair #1 of System n to Remote
HDSL_n_R1
Terminal n.
-130 Vdc is simplexed on this line for powering the Remote Terminal.
System n
HDSL_n_T2
Tip and Ring terminations for HDSL Pair #2 of System n to Remote
HDSL_n_R2
Terminal n.
+130 Vdc is simplexed on this line for powering the Remote Terminal.
System n
PWR_1_T1
System n auxiliary Power Pair #1. Used for auxiliary power to the RT
PWR_1_R1
when using a PG-Flex doubler unit.
System n
PWR_2_T2
System n auxiliary Power Pair #2. Used for auxiliary power to the RT
PWR_2_R2
when using a PG-Flex doubler unit.
System n
BYPASS_n_T
Termination for the metallic bypass pair into COT System n from RT n.
BYPASS_n_R
* Where n is 1, 2, 3, or 4 for Systems 1, 2, 3, or 4 respectively.
System 3
System 4
P7
P8
P15
P16
P11
P12
Shelf Backplane Connector
(rear view)