How to build Digium analog boards
General Information
Digium manufacturers several modular analog PCI and PCI Express boards. The four and eight port versions are half-length boards and the 24-port is full-length. Each board can be constructed and expanded by adding addtional modules as described below.
Terminology:
Digium Base Board = The main Digium card that plugs into your server's PCI or PCI Express slot. For example: TDM410P, AEX800P, TDM2400P
FXS Module = FXS modules provide internal extensions for connecting to analog phones or fax machines. Digium manufacturers one and four port modules.
FXO Module = FXO modules accept a phone lines from the phone company. Digium manufacturers one and four port modules.
Echo-cancellation Module = Performs echo cancellation on the Digium board thus reducing CPU load. The hardware echo cancellation module can be added to any of Digium's analog boards.
A properly constructed board will consist of:
1. Digium base board
2. FXS and / or FXO modules
3. Hardware echo-cancellation module (Optional)
How to build a Digium TDM410 or AEX410 board
The Digium TDM410P and AEX410P hold from one to four single port modules. Any combination of single port FXS and FXO modules can be added to the board as long as the total does not exceed four modules.
Digium 4-port Base Boards:
TDM410P = Universal (3.3v and 5v) PCI
AEX410 = PCI Express
Compatible Modules:
S110M = Single port FXS module
X100M = Single port FXO module
VPMADT032 = Hardware echo-cancellation module
Steps to build a TDM410P or AEX410 board:
1. Select the appropriate base board based on your server / application requirements.
2. Determine the required number of FXS and FXO modules. Remember: Each module supports one port
3. Decide whether or not to add hardware echo cancellation.
How to build a Digium TDM800 or AEX800 board
The Digium TDM800P and AEX800P support from one to eight ports. The boards accept either single or quad modules in two locations on the board. Each location can hold a maximum of two single modules or one quad module. In addition a hardware echo-cancellation module may also be added. Some examples of popular configurations are:
A) Two single modules in location 1 and one single module in location 2. (3 ports total)
B) One single module in location 1 and a quad module in location 2. (5 ports total)
C) Two single modules in location 1 and a quad module in location 2. (6 ports total)
D) Quad modules in locations 1 and 2. (8 ports total)
Digium 8-port Base Boards:
TDM800P = Universal (3.3v and 5v) PCI
AEX800P = PCI Express
Compatible Modules:
S110M = Single port FXS module
X100M = Single port FXO module
S400M = Four port FXS module
X400M = Four port FXO module
VPMADT032 = Hardware echo-cancellation module
Steps to build a TDM800 or AEX800 board:
1. Select the appropriate base board based on your server / application requirements.
2. Determine the required number of FXS and FXO modules. Remember: Each of the two module locations can hold a maximum of two single modules or one quad module.
3. Decide whether or not to add hardware echo cancellation.
How to build a Digium TDM2400 or AEX2400 board
The Digium TDM2400 or AEX2400 boards hold from one to six four port modules. Any combination of four port FXS and FXO modules can be added to the board as long as the total does not exceed six modules. In addition a hardware echo-cancellation module may also be added.
Digium 4-port Base Boards:
TDM2400P = Universal (3.3v and 5v) PCI
AEX2400 = PCI Express
Compatible Modules:
S400M = Four port FXS module
X400M = Four port FXO module
VPMADT032 = Hardware echo-cancellation module
Steps to build a TDM2400 or AEX2400 board:
1. Select the appropriate base board based on your server / application requirements.
2. Determine the required number of FXS and FXO modules. Remember: Each module supports four ports
3. Decide whether or not to add hardware echo cancellation.
4. Plan the connection from the back of the Digium board to the phone lines. The Digum 2400 series boards have an amphenol connector on the back and may be connected to a punch-down block or breakout box via an optional amphenol cable.
Wow, this is really confusing. How do I get help?
If you require assistance constructing your Digium board (or would like to confirm your selection), please contact Telephony Depot Sales. The contact information can be found at the bottom of each page on telephonydepot.com
