Chapter 1 System Overview

1.1 System Overview:

The IDM system adopts NetGuard as its network management platform, achieving unified network management through the control panel. The network management system can manage the following items:

a. Query and set network host status, network topology, operational status, and overall alarm status

b. Query the type, operational status, and overall alarm status of each board card

c. Set and query E1 alarm shielding for each tributary

d. Set automatic query function

e. Set and query four E1 timeslot DXC connections

f. Set and query 30-channel plug-in board services and N×64K services

The overall system block diagram is as follows:

                       Figure 1

1.2 Hardware Requirements:

Host: PC-compatible machine with a functional serial port;

CPU: 586 or higher;

Memory: 64M or more;

Video memory: 2MB or more;

Display: 17" color monitor;

Hard disk: 2G or more;

Operating system: Windows 95/98/2000/XP

1.3 Connection Method with Transmission Equipment

The network management computer connects to the transmission equipment via a serial port (COM1 or COM2). Schematic diagram (as shown in Figure 2)

                            Figure 2

Chapter 2 Installation

2.1 Step 1: The network management software can be installed from the CD. The files on the CD are as follows:

Figure 3

2.1 Double-click "Setup.exe" in the network management directory to enter the "Welcome" dialog box; click "Next" to proceed to the "User Information" dialog box, where you should enter your name and company name. See Figure 4

Figure 4

Step 3:

2.1 Click "Next" to enter the "Choose Destination Location" dialog box. You can click the "Browse" button to select the installation directory (default directory is "C:\Program Files\china\NetGuard"). See Figure 5

Figure 5

2.4 Step 4: After selecting the directory, click "Next" to enter the "Select Program Folder" dialog box (this may take a moment). It is recommended to use the default settings and click "Next" to proceed to the "Start Copying Files" dialog box; click "Next" to begin the installation process (this will take some time). See Figure 6.

Figure 6

2.5 Step 5: After installation completes, click the "Finish" button in the "Setup Complete" dialog box. The installation is now complete. See Figure 7.

Figure 7

Note: During installation, you can click the "Back" button to return to the previous dialog box, or click "Cancel" and then click "Exit" in the "Exit Setup" dialog box to exit the installation program.

Chapter 3 Menus and Windows

3.1 Interface Introduction

The main interface consists of five parts:

Main Menu

Main Toolbar

Resource Management Window

View Window

System Information and Event Log Window

Figure 8

3.2 Menu Introduction

The main menu consists of File, View, Management, Window, and Help. The File menu includes New, Open, Save, Save As, Print, Print Setup, and Exit. The View menu includes Ping Window (currently unavailable), Resource Management Window, and System Information/Event Log Window. The Management menu includes Set Timer Query Interval (set the automatic refresh interval in units of 10 seconds), and User Management (manage user permissions; super users can add or delete users, while other users have no access rights).

Figure 9

3.3 Main Toolbar Introduction

The main toolbar mainly includes New, Open, Save, Save As, Print, Print Setup, Close, Start/End Automatic Refresh, etc.

Figure 10

Chapter 4 Usage Guide

4.1 Login

After launching the NetGuard software from the installation directory (default: "C:\Program Files\china\NetGuard"), the user login window will appear, requesting the input of username and password (default superuser: "admin", password: "admin"). See Figure 1. If the username or password is incorrect, the program cannot be exited. During login, different operation permissions can be selected as needed (all subsequent operations are performed as a super administrator).

Figure 11

4.2 Create IDM120 Management Object

4.2.1 Set Network

After successful login, enter the management main window. Select "File1" in the "Tree From" dialog box, and from the right-click menu choose "Add Network". You can add your own network (by default, a network named "NET00-0" has already been created for you). Select "NET00-0", right-click, and choose "Object Properties" from the pop-up menu. In the Network Object Properties:

• Network Type: Select "SNMP Express"
• Communication Port: Select the COM port currently used by the PC (e.g., COM1)
• Source Address: The station address of the ADM120 host connected to the PC, ranging from 0 to 32 (e.g., Station 1 connected to PC)

After setting, click "OK".

Figure 12

4.2.2 Set NE

Add NEs according to the required network configuration (each device is an NE). By default, the menu already includes "adm120-1".

Select "adm120-1", and from the right-click menu choose "Object Properties" to set the NE object properties. Only the address change takes effect; changing the NE name or type has no effect.

The NE view window is shown in Figure 14 below:

4.3 Functional Description of Each Management Module

4.3.1 Host Equipment Status Query and Setting Function

In the tree directory, directly select the host to be queried, as shown in Figure 14:

Figure 14

l Setting Description:

Clock mode options include: Master Clock, External Clock, E1 Port Extract Clock, and Synchronous User Port Extract Clock. For the ADM120, a high-precision internal clock source is already built-in. Therefore, the NE intended to be set as the master clock should be configured as "External Clock", and only one master clock is allowed in the entire network. Other NEs can only be set to E1 Port Extract Clock or Synchronous User Port Extract Clock. Synchronous user ports support data channels such as V.35 and V.24.

4.3.1.1 Network Management Channel Selection: Choose either timeslot 0 or 1 of the E1 channel.

4.3.1.2 Network Topology Parameters: Four options are available:

1. Unidirectional: Only the first E1 channel is used for network management transmission.

2. Bidirectional: The first and second E1 channels are used for network management transmission.

3. Tri-directional: The first, second, and third E1 channels are used for network management transmission.

4. Quad-directional: The first, second, third, and fourth E1 channels are used for network management transmission.

4.3.1.3 CRC Enable: The network management system can disable or enable CRC.

Notes:

These settings do not apply to the "Economical IDM-120P".

The network topology parameter must match the actual number of E1 tributaries used.

When the host is a slave station, the E1 tributary number from which the clock is extracted must be specified.

When the returned information matches the set information, the configuration has taken effect.

4.3.2 Four E1 Tributary Status Query and Setting Function

In the "TreeForm", select "E1 Channel"; the view window displays as shown in Figure 15.

Figure 15

l Configuration Description:

Configure E1 mode: Select any of the A, B, C, D channels (check the box), then click "Configure E1 Mode" to complete the configuration. Selected E1 channels use PCM31 mode, which does not transmit signaling (timeslot 16); otherwise, signaling is transmitted in timeslot 16.

The alarm status of the four output E1 channels can be masked (select and configure).

Query E1 mode to verify whether the configuration was successful. If the returned information matches the configuration, the setting has taken effect.

Return status information: Returns the alarm status of the E1 channel. A lit light indicates an alarm. The meanings of each alarm are as follows:

LOS: Signal Loss Alarm; '1' indicates an alarm.

AIS: Remote Alarm (i.e., all-ones alarm on received line);

LOF: Frame Synchronization Loss;

RAL: Remote Alarm A1;

LOSMF: Signaling Multiframe Synchronization Loss Alarm;

CRCI: CRC-4 Check Error Alarm;

LOCMF: Multiframe Synchronization Loss Alarm;

4.3.3 Cross-Connection Matrix (DXC) Query and Setting Function

4.3.3.1 Double-click the downlink DXC; the background turns blue, and the view window displays as shown in Figure 16.

Figure 16

Initialization: Set the entire view window to initial state (Figure 6 is the initial state).

Open: Open a previously saved configuration scheme (4 common schemes are available).

Save: Save the configured scheme for future use.

Configure DXC Information: Apply the pre-configured cross-connection to the device.

Query DXC Information: Query the current cross-connection status on the device to verify if the configuration has taken effect.

Coaxial cable inputs A, B, C, D represent four E1 channels, each with 0–31 timeslots input.

Backplane bus outputs 1, 2, 3, 4 represent the four groups of downlink DXC buses, each with 0–31 timeslots output.

4.3.3.2 Double-click the uplink DXC; the background turns blue, and the view window displays as shown in Figure 17.

Figure 17

Initialization: Set the entire view window to initial state (Figure 6 is the initial state).

Open: Open a previously saved configuration scheme (4 common schemes are available).

Save: Save the configured scheme for future use.

Configure DXC Information: Apply the pre-configured cross-connection to the device.

Query DXC Information: Query the current cross-connection status on the device to verify if the configuration has taken effect.

Configuration method is the same as for the downlink DXC.

Backplane bus inputs 1, 2, 3, 4 represent the four groups of uplink DXC buses, each with 0–31 timeslots input.

Coaxial cable outputs A, B, C, D represent four E1 channels, each with 0–31 timeslots output.

4.3.4 Backplane Bus and User Service Interface Query and Setting Function

After selecting the user service interface, the background turns blue, and the view window displays as shown in Figure 18.

Figure 18

Initialization: Set the entire view window to initial state;

Open: Open an existing configuration scheme (3 schemes are pre-configured);

Save: Save the current configuration;

Select Through: Signal is looped back directly without passing through the plug-in card (in through mode);

Configure Built-in Interface: Configure V.24 and N×64 interfaces;

Query Built-in Interface: Query the configuration status of the built-in interface;

Configure User Timeslots: Configure the connection between the 0–31 timeslots of the four groups (1, 2, 3, 4) of the downlink DXC backplane buses and the slots;

Query User Timeslots: Query the connection between the 0–31 timeslots of the four groups (1, 2, 3, 4) of the downlink DXC backplane buses and the slots;

Configure Control Information:

Query Control Information:

Query Plug-in Card Type: Query the type of card inserted in the slot. Available types include V.24, Audio Card, Local End Card, Remote End Card, etc.

Built-in Interface Configuration:

• "Used" field: 0 means the link is not used, 1 means it is used.
• Bus number corresponds to the four backplane buses.
• Timeslot number is the actual starting timeslot.
• Quantity corresponds to the bandwidth of multi-timeslot cards.

Note: Double-clicking a slot icon displays detailed information for that slot.

The four groups of 0–31 timeslots (1, 2, 3, 4) represent the backplane buses (DXC) corresponding interfaces.

A, B, C, D represent the timeslots corresponding to the 30×64K services from slot 1 to 15.

V.24 represents the four V.24 manual timeslot settings for the extended built-in interface.

N×64 represents the four V.35 or 10BaseT card manual timeslot settings for the extended built-in interface.

Chapter 5 Typical Configuration Examples

5.1 Four Phones, One Network Communication

5.1.1 Let's examine an example of two economical models interconnected. The connection diagram is as follows:

Figure 19

5.1.2 Now we set Device 1 as the master station (Station 1), Device 2 as the slave station (Station 2), using COM1, and the network line is plugged into Station 1. The configuration is as follows, with the network object properties shown in Figure 20

Figure 20

5.1.3 The NE object properties of the first NE (Device 1) are shown in Figure 21, and those of the second NE (Device 2) are shown in Figure 22.

Figure 21

Figure 22

5.1.4

The view window settings for the first NE (Device 1) are shown in Figure 23, and those for the second NE (Device 2) are shown in Figure 24. However, since the second NE is an economical IDM model, its settings are ineffective. This is provided for reference in other scenarios.

Figure 23

Figure 24

5.1.5

E1 channel settings as shown in Figure 25. When transmitting voice or other signaling-bearing signals, PCM30 mode should be used unless under special circumstances. Output alarms are generally not masked.

Figure 25

5.1.6 Downlink bus configuration as shown in Figure 26: Signal enters from the first coaxial cable, then splits into one signaling signal (timeslot 16), one network management signal (timeslot 0), and 30 signal channels. The 30 signal channels are divided into four groups and sent to the four backplane buses, then distributed to each card. Uplink bus performs the reverse process, as shown in Figure 27.

Figure 26

Figure 27

5.1.7 User interface configuration as shown in Figure 28, where one Ethernet card and two telephone cards are configured.

Figure 28

Note:

The telephone card occupies the first four timeslots. The remaining 26 timeslots after timeslot 5 are used for Ethernet.

When user interface configuration conflicts with plug-in cards, a priority order applies: V.24 > N×64K > Plug-in Card.

The timeslots allocated to N×64K must be continuous.

User interface configuration must be performed after the uplink/downlink configuration is set.

The E1 channel, uplink DXC, downlink DXC, and user interface configurations of the two IDM devices are similar; as long as the cards correspond, the configurations can be identical. Repetition is omitted here.

5.2 Four Phones, One Network, One Master Station, Four Slave Stations

Let’s examine an example of four phones, one network, one master station, and four slave stations. The connection diagram (telephone lines for devices 3–5 are not shown). Notably, all four slave stations should use the first 2M to extract the clock.

Now we set Device 1 as the master station (Station 1), and the other devices as slave stations, using COM1, with the network line plugged into Station 1. The configuration is as follows, with the network object properties shown in Figure 21. Now, add one more NE to the default setup (four NEs), as shown in Figure 30.

Figure 30

The NE object properties of the first NE (Device 1) are shown in Figure 21, those of the second NE (Device 2) in Figure 22, and those of the third to fifth NEs are similar to the second NE.

The view window settings for the first NE (Device 1) are shown in Figure 31 (if not an economical product), and those for the second NE (Device 2) in Figure 24. The third to fifth are similar to the second. Note that for the economical PCM120 model, these settings are invalid.

Figure 31

The E1 channel settings for each NE are shown in Figure 25. When transmitting voice or other signaling-bearing signals, PCM30 mode should be used. Unless under special circumstances, output alarms are generally not masked.

The downlink bus configuration for each NE is shown in Figure 26: signals enter from four coaxial cables, respectively, sent to the four backplane buses, then distributed to each card. The uplink bus performs the reverse process, as shown in Figure 27.

The user interface configuration for Device 1 is shown in Figure 32, where four Ethernet cards and eight telephone cards are configured.

Figure 32

The user interface configurations for Devices 2 to 5 are shown in Figure 28, which can be referenced from the "Four Phones, One Network Communication" settings. One Ethernet card and two telephone cards are configured. Thus, the configuration for one master station and four slave stations with four phones on one network is now complete.