Electrical transmission distance for the 2890 T1 to Fiber Bit-Driver. |
Document: 10022
Category: 2890 T1 to Fiber Modem
Date Posted: 05/30/02 |
Problem
How far will the 2890 transmit on the electrical side? Also, does the 2890 generate a T1 signal for
loopback testing?
Solution
The 2890 (T1 over Fiber Bit-Driver) can transmit the following distances which are based on 22 AWG solid twisted
pair wire:
|
LBO Switch Position
|
Option Selected
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Application
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0
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Test Mode
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Do Not Use
|
|
1
|
-7.5 dB Buildout
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T1 CSU
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|
2
|
-15 dB Buildout
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T1 CSU
|
|
3
|
0 dB Buildout
|
T1 CSU
|
|
4
|
133-266.0 Feet
|
DSX-1 Cross Connect
|
|
5
|
266.1 to 399.0 Feet
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DSX-1 Cross Connect
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|
6
|
399.1 to 533.0 Feet
|
DSX-1 Cross Connect
|
|
7
|
533.1 to 655 Feet
|
DSX-1 Cross Connect
|
The 2890 does not generate a T1 signal. The T1 signal must originate from an external source.
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