NEC 2400 ipx User Manual Page 471

  • Download
  • Add to my manuals
  • Print
  • Page
    / 644
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 470
NDA-24296 CHAPTER 3
Page 445
Revision 1.0
PA-SDTA
SDH/SONET Digital Trunk
(c) Length of Fiber Optic Cable
The maximum length of the fiber optic cable is approximately 15 kilometers (9.3 miles). Figure 3-
128 shows the level diagram of the fiber optic interface.
Figure 3-128 Level Diagram
Level margin in the case of 15 kilometers (9.3 miles) is as shown in the following table.
Note:
Maximum cable length varies depending on the type of cable and the number of connection points.
Table 3-8 Level Margin
CONDITION LEVEL MARGIN
Worst case 4.0 dB
Best case 11.0 dB
0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00
20.00 (km)
0.00
-5.00
-10.00
-15.00
-20.00
-25.00
-30.00
-35.00
Minimum Receiver Sensitivity : -31.00 dBm
Maximum Receiver Sensitivity : -8.00 dBm
: Best Case
: Worst Case
: Maximum Receiver Sensitivity
: Minimum Receiver Sensitivity
Cable Length
1.20 2.40 3.70 4.40 6.20 7.40 8.60 9.90 11.00 12.00 (miles)
Receiver Sensitivity (dBm)
Page view 470
1 2 ... 466 467 468 469 470 471 472 473 474 475 476 ... 643 644

Comments to this Manuals

No comments