• August 5, 2021 12:04 am
  • Lahore, Punjab

The TDM400P is an interface card introduced by Digium.

It has up to 4 analog phone line ports on it.

It can be configured with any combinations of station or CO modules by means of mounting daughter cards on the main card. The daughter card for an FXO port is red, the FXS card is green.

The card requires external power to be supplied to it via a standard PC 4-pin Molex power connector, such as the ones that connect to hard disk drives.

The easy way to find out if you have not plugged in your power is to run run ‘dmesg |grep -i tdm’
The external connections are four RJ-11 jacks. Port #1 is the one toward the top of the computer (away from the motherboard), Port #4 is the port closet to the motherboard. There is a green LED next to each port.

In the configuration as supplied when purchased as part of the Asterisk developer’s kit, the local station line is port #1, the central office line is connected to port #4.


  • Accessory Type : Other
  • Condition : New
  • It has up to 4 analog phone line ports on it.
  • For ptcl lines placed in ip server.


Model town Lahore.,Lahore,Punjab