********************************* Update Firmware & Firmware version ********************************* In order for VDSL local and remote converters to communicate, both remote and local ends must set to the same communication speed. If speeds are different then remote and local modems, VC-101M and VC-101S for example, will not link. The factory default firmware (R2) of VC-101M/S supports symmetric 11Mbps data rate. The data rate can be increase to 15Mbps downstream and 17Mbps upstream in trade off shorter distance by update the firmware to R4 version.PLANET also provides a R4.5 firmware for VC-101S to work with VC-412 and Cisco's LRE switch. The following table lists the feature of R2, R4 and R4.5 firmware. The following table list the feature of R2 and R4 firmware. Firmware version Upstream Downstream Max. Distance Speed/Rate(Mbps) Speed / Rate R2 (default) 12.5/11.38 12.5/ 11.38 1.2km R4 18.75/17.06 16.67/ 15.17 1.05km R4.5 1.56/1.43 4.17/3.77 1.5km 6.25/5.69 6.25/5.69 1.5km 12.5/11.38 12.5/11.38 1.2km 18.75/17.06 16.67/15.17 1.05km Note: The distance is based on good cable quality and connection status. The actual distance can be reduced by the following factors: 1. The age and type of the wiring. 2. The quality of the cable. 3. Each terminated bridge tap may reduce the distances by 300 feet. 4. If it run over bundled telco cabling, the maximum distance supported can be approximately 30 percent lower due to cross talk and interference. 5. The 5/10/15 data rate for R4.5 is only applicable between VC-101S and VC-412. If connect VC-101M and VC-101S with R4.5 firmware, the speed is only 4/1 Mbps. 4.2 Update Procedure Users can adjust transmission speeds manually through an application called the "E2PROM Programmer" created by Infineon. This program can be found on "Utility" directory of bundled CD. Before running this program, please note that it is only for the following operation systems: 1. Windows 95, 98, NT, Me English version. 2. Windows 2000 and XP However, Windows 2000 and XP should be configured to use English as default language settings for the system. To configure this, Windows 2000: Click "Start" -> "Settings" -> "Control Panel" -> "Regional Options" -> "General" tab. Click "Set default" button and select "English [United States] as default language settings. Windows XP: Click "Start" -> "Settings" -> "Control Panel" -> "Regional and Language Options" -> "Advanced" tab. On the "Language for Non-Unicode programs" list, select "English [United States]". Below are the procedures to change its speed through "E2PROM Programmer". 1. Connect VC-101 console port to a PC COM port. (DB9 to DB9 Cable) 2. Launch the "E2Prom Programmer" application. 3. Select "PEF22822 V2.2" option from the drop-down menu. 4. Press the "Continue" button. 5. Press "Open File" button to open the firmware file to be upload to the VC-101. Note: The firmware file should be placed on directory with only English character. 6. Locate and open the corresponding version of firmware file to be uploaded. 7. Press "Program" button to upload the file. 8. Select the COM port which the VC-101 is connected to. 9. Press "OK" button. 10. Repeat steps 1 to 9 for another VC-101. 11. Disconnect the console cable from VC-101 and PC COM port when finished. To verify the new setting: I. Connect the VC-101M and VC-101S and make sure they are linked. (If connection does not establish might due to distance restriction or environment factors) II. Connect the VC-101M and a PC through console port via console cable. (DB-9 to DB-9 cable) III. Launch terminal application and set its settings to: Baud Rate: 9600 Data Bits: 8 Parity: None Stop Bits: 1 Flow Control: None IV. Once connect you will be able to see the command prompt L> Observe: "L>" represents the command prompt at VC-101M(local modem, the console cable connected unit is consider the local one), to toggle to the VC-101S(remote modem), press [CTRL+E] on the keyboard, you should see the command prompt change to "R>". V. Toggle to the VC-101S by holding and releasing [CTRL+E]. VI. Issue the command RD C020,4 at the command prompt to read the speed of the VC-101M/S. VII. Compare the displayed variables with the variable in the table below to determine your VC-101M/S's speed. Variables for 11 Mbps upstream/11 Mbps downstream (R2) 32 24 4F 00 Variables for 17 Mbps upstream/15 Mbps downstream (R4) 31 22 4F 00 VIII. Toggle back to the VC-101M by pressing and releasing [CTRL+E]. IX. Issue the same commands that issued in VC-101S. Sincerely Yours, PLANET tenical support team http://www.planet.com.tw