Verilink Access Manager 2000 (896-502037-001) Product Manual - Manual (Page 35)

Network Elements
Access Manager 2000 User Manual 1-5
The modes of access for near-end nodes are standard implementations of
RS-232 interface methods, that is, direct, daisy-chained, through a
statistical multiplexer, or by modem. The mode of access for far-end
nodes is through the ESF Data Link through the near-end node access.
Since the functional specifications of the various Verilink network access
systems differ, Access Manager presents a different set of menus for the
two different types of nodes.
The two basic types of nodes are:
■
AS2000 type node (includes Access System 2000 and ConnecT1
Plus network management systems). ConnecT1 Plus is a low-cost
implementation of AS2000 hardware available in a dual-line shelf
configuration only
AS2000 and ConnecT1 Plus nodes can have up to four shelves per
node. ConnecT1 Plus nodes have only dual-line shelves. AS2000
nodes can have a combination of dual-line and multiline shelves.
However, of the four possible shelves in an AS2000 node, no more
than two can be multiline shelves.
■ 551VST type node (551VST type single-line nodes; SIM, NC/E,
551VST ML List 1, and 551VST ML List 2 multiline nodes).
This manual presents information mainly through menu descriptions.
Access Manager has two types of menus:
■
The AS2000 type of menus that reflect the functions of AS2000 and
ConnecT1 Plus Nodes.
■
551VST type menus for the other types of nodes.
The various configurations for these nodes are described in the following
section.
Single-Line Nodes
The single-line nodes with which Access Manager 2000 interfaces are as
follows:
■
551VST List 1/A CSU
■
551VST List 1/B CSU
■
551VST List 2 CSU