Polycom MGC Administrator Administrator's Manual page 62

Chapter 3 - Defining Network Services
3-12
Table 3-4: Span Definition Dialog Box Options
Field
Framing (cont.)
Line Length
Description
If a span type of T1 is specified in the Settings
dialog box, the following Framing values are
available:
•
ESF (Extended Super Frame format of 24
frames, which provides enhanced
performance). This is the system default
• ESF ZBTSI
• SF SLC96
• SF
If a span type of E1 is specified in the Settings
dialog box, the following framing values are
available:
•
CRC4 Si = FEBE (default)
•
CRC4 Si = 1
•
BASIC, noCRC4
Indicates the distance between the MCU and the
PBX.
Select the desired option from the drop-down list.
If T1 is specified as the span type in the Settings
dialog box, the following Line Length values are
available:
•
0-133 ft. (0.0 dB)
•
133-266 ft. (-7.5 dB)
•
266-399 ft. (-15.0 dB)
•
399-533 ft. (-22.5 dB)
•
533-655 ft. (-30.0 dB)
If E1 is specified as the span type in the Settings
dialog box, the Line Length value is 0 by default.