Polycom MGC Administrator, Руководство администратора

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Chapter 3 - Defining Network Services
3-14
Switch Type Select the desired brand and revision level of
equipment installed in the telephone company’s
central office.
If T1 is specified as the span type, the following
Switch Type values are available:
•
AT&T 4ESS
•
AT&T 5ESS
•
Northern Telecom DMS-100
•
Northern Telecom DMS-250
•
Ericsson MD110 U.S.
•
Siemens U.S.
If E1 is specified as the span type, the following
Switch Type values are available:
•
Ericsson MD110 International
• Euro ISDN
RCV Threshold RCV Threshold refers to the minimum detectable
signal in a T1 or E1 span on the Net-2/4/8 card
FALC component. This option is used to increase
the signal on E1 or T1 spans when the system
detects a very low signal.
Select the desired threshold values from the list.
The following values are available:
•
THRESHOLD 0 (by default)
•
THRESHOLD 1
•
THRESHOLD 2
•
THRESHOLD 3
Note: When you modify the threshold values a
warning is displayed, advising you to obtain
authorization from system support.
Click
OK to confirm the modification.
Leased Lines The Leased Lines list is enabled when you select
Leased as the Service Type in the Settings dialog
box. For more information on how to configure the
leased line connection, see “Defining ISDN Leased
Lines” on page 3-19.
Table 3-4: Span Definition Dialog Box Options
Field Description