HP OfficeConnect 1820 24G PoE+ User manual

User Manual
RT-1000 Multichannel
Network Interface

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Edited by:
RHOTHETA Elektronik GmbH
Kemmelpark
Dr.-Ingeborg-Haeckel-Str. 2
82418 Murnau
Germany
Tel.: [phone] - 0
Fax: [phone] - 15
Internet: www.rhotheta.de
E-Mail: [email protected]
Copyright © RHOTHETA Elektronik GmbH
All rights reserved
-Issue: 2016/01/28 [Rev 1.00]
-Document-ID: 12-9-1-0015-10-3-3-1-60
Note
The manufacturer reserves the right to make modifications at any time and without previous
information of the here described product.

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Content
1 Description.......................................................................................................................4
2 Block Diagram..................................................................................................................4
3 Components.....................................................................................................................5
4 Network Interface Configuration....................................................................................5
4.1 Switch Configuration...............................................................................................................................5
4.2 Modem Configuration .............................................................................................................................9
5 Notes...............................................................................................................................13

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1 Description
The network interface for the RT-1000 multichannel direction finder system includes all
devices to connect the system over an internet connection to a remote PC. The network
interface is built with a redundancy in the transmission/ telephone line. Therefore 2 network
switches and 4 DSL modems are necessary.
2 Block Diagram
1
2
3
5
4
6
8
7
7

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3 Components
4 Network Interface Configuration
4.1 Switch Configuration
To configure the network switches a PC with a network interface card (NIC) and a browser
must be connected to the switch. The NIC should be configured according to the subnet of
the switch.
1. Connect to the shelter switch (Pos. 1) with default IP 192.168.1.1 (if no DHCP is
available)
2. Login to the switch with default user parameters
Username: admin
Password: _________ (no password)
DF Channel Components
Pos.
Component
Description
1 Network Switch (Cabinet) HP 1820-24 G with spanning tree enabled
2 Network Switch (Tower) HP 1820-24 G with spanning tree enabled
3 Modem A1 Orion 3 SHDL modem, line one, master configuration
4 Modem A2 Orion 3 SHDL modem, line one, slave configuration
5 Modem B1 Orion 3 SHDL modem, line two, master configuration
6 Modem B2 Orion 3 SHDL modem, line two, slave configuration
7 LAN connection Network cable
8 DSL connection Telephone cable

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3. Go to the page “Setup Network”, “get connected” and set IP settings as required.
IP address: 192.168.77.207
Subnet Mask: 255.255.255.0
Gateway Address: 192.168.77.1
4. Press “Apply” and reconnect the PC to the switch with the new IP address.
5. Go to “Setup Network”, “System Time” and set time settings as required and press
“Apply”

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6. Go to the page “Switching”, “Spanning Tree”, “Configuration” and change settings to
the values listed below and press “Apply”:
-enable spanning tree, protocol version RSTP (802.1w)
-bridge-priority for the first switch (shelter) is 0 (zero)
- bridge-priority for the second switch (tower) is 16.384
7. Go to “Maintenance”, “Backup and Update manager”, backup, transfer a file from the
switch) and click on the arrow pointing downwards:

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8. Choose “Configuration” and click on “Begin Transfer”
9. Save the file with the extension.cfg to disk and keep it in a safe environment.
10. Press “Close” and go to “Maintenance”, “Password Manager” and set a password as
required (min. 8 characters):
11. Repeat all steps for second switch (tower) with different IPaddress.
Caution
Notice the different RSTP-Settings in step 6 for second switch.

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4.2 Modem Configuration
To configure the modems a PC with a network interface card (NIC) and a browser must be
connected to the switch. The NIC should be configured according to the subnet of the
switch/modems. The default IP address for new modems is 192.168.0.235.
The software TFTP-Server must be installed and running on the PC for the configuration of
the modems with the configuration files.
Needed Files: mdm-a1, mdm-a2, mdm-b1, mdm-b2
1. Connect modem to switch with LAN1
2. Type the modem IP in your browser (new modem: 192.168.0.235)
3. Choose “Configuration” (on the left) and “Software & Configuration Update” (on top).
Type IP address of the PC with TFTP-Server running and the name of the config-file.
For example:
TFTP-Server IP : 192.168.0.230
Config file path: mdm-a1
4. Click on “Upload”
5. Don’t forget to change the IP address of your PC after the upload. When the
modem restarts it will have the IP address from the RHOTHETA-config-file.

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6. Open your browser and connect to the modem. There are 2 different configurations
coming from RHOTHETA:
•modem mdm-a1 and mdm-b1 are configured as master-modems (dsl-parameter)
•modem mdm-a2 and mdm-b2 are configured as slave-modems (dsl-parameter)
7. Do not use the same config-file for different modems as the MAC address is
included in the config-file!
8. IP address table RHOTHETA config-files:
•shelter: mdm-a1: 192.168.77.217 mdm-b1: 192.168.77.218
•tower: mdm-a2: 192.168.77.208 mdm-b2: 192.168.77.209
9. Changing IP settings:
Open your browser and connect to modem, for example mdm-a1 192.168.77.217.
10.Change IP settings as required an click on “Save”:

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11.There will be a warning to apply again and confirm the changes:
12.There will be again a warning and you’ll have to logon to the modem within the next 5
minutes to confirm, the settings. Otherwise the old settings will be restored:

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13.After reconnect to the modem you have to confirm the configuration:
14.After confirming the changes everything is written to the startup-config:
15.Don’t forget to set a strong password and to back up the configuration after
everything is configured!

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5 Notes