User Manual

ADCP-75-179 • Preliminary Issue A • September 2004 • Section 1: Overview
Page 1-5
© 2004, ADC Telecommunications, Inc.
2.5 Network Operations Center Interface
Communications between a Network Operations Center (NOC) and a networked group of
multiple Digivance systems is supported by a NOC interface capability as shown in Figure 1-5.
To support the NOC interface, a PC-type computer loaded with the Digivance Element
Management System (EMS) software is required. EMS provides the various control and
monitoring functions required to remotely manage multiple Digivance systems through the
NOC interface.
A Controller Area Network (CAN) port is provided on each HU. Up to twenty-four HU’s may
be linked together through the CAN interface and controlled by the same EMS computer. All
the networked HU’s and the associated RU’s may be managed by connecting the EMS computer
to one HU. The EMS computer provides an RS-232 port (#1) to support the interface with the
networked HU’s.
The NOC can be linked to the EMS computer through a T1 system, DS0 with RS232
conversion, or some other medium. The EMS computer provides an RS-232 ASCII interface
port (#2) to support the interface with the NOC.
At the NOC, control and monitoring of the networked Digivance systems is implemented
through a Network Element Manager (NEM) interface which requires only a VT100 terminal/
emulator for operation. The NEM interface language consists of simple ASCII text strings. All
communications are input as either SET or GET commands which result in ASCII text string
responses from the specified system or systems.
Figure 1-5. Remote Management of Networked Digivance Systems Through NOC Interface
PC COMPUTER WITH
EMS SOFTWARE
HOST UNIT
HOST UNIT
HOST UNIT
RS-232
20010-A
CD-ROM WITH EMS
SOFTWARE
CAN
CAN
NETWORK
OPERATIONS
CENTER
(REMOTE
INTERFACE)
RS-232
ASCII
T1, DS0
WITH RS232
CONVERSION,
OR OTHER
MEDIUM
REMOTE
UNIT
REMOTE
UNIT
REMOTE
UNIT