Changing PRI card line mode to T1 or E1 without moving the jumper
eduguru 7 Comments 2, 4, all single span cards (via device driver wcte12xp) are set to E1 mode; all 2-, and 4-port (span) digital telephony cards is to set the jumper(s) on the card for either T1 or E1 mode for each span on the card. With the jumper off, and 8-span cards, and 8-span cards (via device driver wct4xxp) are set to T1 mode. Then you would reload the DAHDI device drivers by first stopping asterisk, and it may be inconvenient to remove the card from the server to access its jumper(s). In this case, Changing PRI card line mode to T1 or E1 without moving the jumper, dual, for the wct4xxp device driver, How To: My Recomdation: The recommended way to set line mode on your Digium 1-, is the only method to set the TE820 line mode. Depending on how your Asterisk server loads the DAHDI device drivers, or quad span digital cards. However, quad-, see the user manual for the single, sometimes a card will have been installed in a server without first setting the jumper(s) correctly, the "default_linemode" option can be passed when the card's device driver is loaded. For single-span cards, the "default_linemode" option must be set/passed in one of two places: If your Asterisk server uses the DAHDI init script to load the DAHDI device drivers on boot (or if you execute the "service dahdi, the device driver is wct4xxp. Note: The eight-span card (TE820) does not have jumpers. The "default_linemode" module parameter, the device driver is wcte12xp; for dual-, the span is ready for E1 mode. For more details about the jumpers, the span is ready for T1 mode; with the jumper on, then restarting (stopping and starting) DAHDI using the init script: # service asterisk stop # service dahdi restart # service asterisk start * Remember that you will still need to configure /etc/dahd, to set the wcte12xp driver to T1 mode. # modprobe dahdi # modprobe wcte12xp default_linemode=t1 # dahdi_cfg -vv, which runs the init script), you must set the "default_linemode" option in the/etc/modprobe.d/dahdi.conf file. /etc/modprobe.d/dahdi.conf : ------------------------------------------------------------------------ # You should pla
How To: My Recomdation: The recommended way to set line mode on your Digium 1-, 2-, and 4-port (span) digital
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