User Manual

ADCP-75-159 • Issue 1 • August 2003 • Section 2: Description

Page 2-26

DCE interface. A straight-through RS-232 interface cable (accessory item) equipped with a

male DB-9 connector on one end and a PC-compatible connector on the other end is required to

link the EMS computer to the HU. When multiple HUs are networked together, the EMS

computer may be connected to the service connector on any one of the networked HUs.

10.3 NOC Interface Connection

The NOC interface connection between the EMS computer and the NOC requires that the EMS

computer be equipped with a connector that is configured to provide an RS-232 ASCII

interface. The link between the EMS computer and the NOC would generally be supported by a

data network. Cables and equipment (not provided) to support the RS-232 interface connection

between the EMS computer and the data network are required.

10.4 EMS Software User Interface

The EMS software provides two user interfaces: the Graphical User Interface (GUI) and the

Network Operation Center-Network Element Manager (NOC/NEM) interface. Both interfaces

provide essentially the same functionality except only the GUI can upgrade the Digivance

system with new system software. In addition, only the NOC/NEM interface can record and

play back alarm data.

The GUI is presented at the EMS computer or on a laptop computer. The GUI is used for local

control and monitoring operations. The GUI consists of a series of displays and screens, such as

the one shown in Figure 2-17, that provide the user with alarm and status information and that

allow the user to set various operating parameters.

Figure 2-17. EMS Graphical User Interface Host/Remote Display

The NOC/NEM interface is a command line interface that is presented at an NOC terminal. The

NOC/NEM interface is used for remote control and monitoring operations. The NOC/NEM

interface consists of ASCII text strings that are input as standard SET or GET commands which