UAS 7001 NIU
2-5
GDC 087R706-000-02
Table 2-1
Unit Configuration Option Settings (Continued)
(Continued on next page)
Option
Potential Settings
[3]
Fallback Clock
Source:
Internal – 7001 serves as the send timing source for T1 data output to the network
if the configured Transmit Clock Source is unavailable (Default)
Recovered – 7001 uses recovered timing if the configured Transmit Clock Source
is unavailable
System – 7001 uses system timing if the configured Transmit Clock Source is un-
available
[4]
PreEqualization
None
PreEqualization is valid
only when Network Inter-
face Type is DSX1
0-130 ft. (Default)
130-260 ft.
260-390 ft.
390-530 ft.
530-655 ft.
[5]
Framing:
ESF – Extended Super Frame (Default)
SF – Super Frame, also called D4
[6]
Line Coding:
B8ZS – Bipolar with 8 Zero Substitution encoding for the network side (Default)
AMI – Alternate Mark Inversion encoding for the network side.
[7]
Line Buildout:
0 dB (Default)
Line Buildout is valid only
when Network Interface
Type is DS1and Line
Buildout Control is Manual
-7.5 dB
-15 dB
-22.5 dB
[8]
FDL Mode:
None (Default)
ANSI T1.403 – compliance with ANSI network performance messages (per
Bellcore TR-TSY-000194), available only with ESF framing
TR 54016 – compliance with network maintenance messages per PUB 54016 –
local performance statistics
[9]
Framing Mode:
Manual (Default)
Auto – 7001 adapts to either ESF or SF framing based on the signal it receives.
[10] Inband Loopback
Type:
Inhibit (Default) – 7001 does not perform a loopback when it receives an
inband loopback code
Line – 7001 performs a line loopback when it receives an inband loopback
code
Payload – 7001 performs a payload loopback when it receives an inband
loopback code