
Total Access
®
3000/3010 System Manual
6TAAPP340-1E
TOTAL ACCESS 3000/3010
APP-340
Page 1 of 2
© 2002, ADTRAN, Inc.
1.1
DS3 Multiplexer Applications
NOTE
References to common, but differing, parameters between the Total Access
3000 and the Total Access 3010, such as number of slots, will be conveyed
by the convention a/b. The “a” represents the Total Access 3000 parameter
and the “b” represents the Total Access 3010 parameter. For example, the
differing number of access slots in the two platforms, 28 for the Total Access
3000 and 22 for the Total Access 3010, would be displayed “28/22.”
1.1.1
Usage
The DS3 multiplexer for Total Access converts the system into one that can accept a
single DSX-3 network interface. A system with a DS3 multiplexer can accept DSX-3
and DSX-1 network interfaces, where the DSX-1 network interfaces are provided
directly to the access modules. The DS3 multiplexer incorporates time slot assignment
to deliver any DS1 (or DS2) in the DS3 to any slot in the system. This allows for
certain slots to have DSX-1 network interfaces, while other slots have a network
interface from the DS3 multiplexer.
The DS3 multiplexers can be configured as simplex or redundant, with protection for
the electronics, not the coaxial cable. If redundant, two units are installed. If not, a
single DS3 multiplexer may be installed in either of the two multiplexer slots.
Regardless of whether one or two are used, the BNC I/0 Module (P/N 1181004L1) is
required to derive the physical DSX-3 network interface.
The DS3 multiplexer is used when a number of DS1 interfaces are delivered from one
location to a Total Access 3000/3010 system. Typically, this DS3 interface will be
delivered to the Total Access 3000/3010 system from either a DCS or SONET
multiplexer. With a DS3 multiplexer installed, the system still accepts DSX-1 network
interfaces to the access modules, so a locally-derived DS1 network interface can be
delivered directly to the system and does not need to be sent over the high-speed
multiplexer.
Figure 1
below illustrates the use of a DS3 MUX in a SONET Ring
application.
Figure 1. SONET Ring to Total Access 3000/3010
HST
C
R
A
F
T
S
C
U
D
S
3
D
S
3
H
T
U
C
H
T
U
C
SONET
MUX
SONET Ring
DS3
DS3
SONET
MUX
Содержание Total Access 3010
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