Enterasys csx5500 用户指南
Central Site Remote Access Switch 117
C
ONFIGURING
R
ESOURCES
AND
L
INES
Resources
R
EGION
For NET3 and NET5 switchtypes. When configuring switches, first identify the region of operation,
and then the country.
and then the country.
C
OUNTRY
For the NET3 and NET5 switchtypes. The country in which the system is operating.
G
ENERIC
N
UMBER
For PRI_4ESS primary rate switch type only. The software load (generic # ) the switch is running.
S
YNCHRONIZATION
T
YPE
For Primary adapters only. Every framed transmission line requires a clock source from which it
must derive the appropriate bit timing and channel timing relative to the start of a frame. For most
CPE gear, the clocking is derived from the received signal and the transmission clock is thus a
“slave” to the network. However, if the line is to provide its own clocking, it must derive a clock
from an internal source rather than a received signal. The line is then a “master” clock source.
must derive the appropriate bit timing and channel timing relative to the start of a frame. For most
CPE gear, the clocking is derived from the received signal and the transmission clock is thus a
“slave” to the network. However, if the line is to provide its own clocking, it must derive a clock
from an internal source rather than a received signal. The line is then a “master” clock source.
PCM E
NCODING
M
ETHOD
For DM-24 and DM-30 adapters only. Pulse Code Modulation (PCM) is a common method of
encoding an analog signal into a digital bit stream. PCM encoding choices are:
•
encoding an analog signal into a digital bit stream. PCM encoding choices are:
•
mu-law (the PCM encoding standard used in Japan and North America)
•
A-law (the PCM encoding standard used in Europe)
R
ESOURCE
B
ACKGROUND
I
NFORMATION
The basic rate (BRI) resource directly terminates a standard USOC RJ45 connector. It is supplied
with a standard S/T interface. A U interface option is not available for this adapter. The BRI
resource supports 1 or 4 connections/ports depending on which option you purchase. It provides
support for the following switch types:
•
with a standard S/T interface. A U interface option is not available for this adapter. The BRI
resource supports 1 or 4 connections/ports depending on which option you purchase. It provides
support for the following switch types:
•
NTT
•
5ESS
•
DMS100
•
NI1
•
1TR6
•
NET3
•
Definity
•
Legend
•
TS0-13
BASIC RATE NET is a test facility. This should not be configured as a resource type.
The T1-E1-PRI can be used for any T1, E1, or PRI resource, and directly terminates a standard
USOC RJ45 connector. It is supplied with a standard S/T interface and supports one port. It also
provides support for the following switch types:
•
USOC RJ45 connector. It is supplied with a standard S/T interface and supports one port. It also
provides support for the following switch types:
•
NTT
•
4ESS
•
5ESS
•
Definity
•
DMS100, DMS250, DMS500
•
SL100
•
NET5