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[dgarces3]

i have one question and that is when we try to use the internet software or any internet software being vanguard, multiview or any software for the wireless cameras, do we need both the pc wireless transceiver CM19A and the TM751 or either one or the other. because as far as what if been reading in the description for both, they do serve the same purposes.

this is what it says for the CMA19A=
The USB PC Transceiver sends and receives X10 radio-frequency commands from your PC. You can use it to control X10 cameras (including the Ninja and Vanguard, with the appropriate software), lights and other modules. It can also be used to receive commands from X10 motion sensors and remote controls, and works with all X10 software (except ActiveHome).

Dim and control lighting with your PC
Control cameras and appliances directly from your computer !
Plugs into your PC's USB port

and this is the detail information for the TM751=
The wireless transceiver module is an integral part of your home control system. It takes radio frequency commands from X10 remote controls and wireless motion sensors and converts them to X10 signals carried over household wiring.

The TM751 allows you to control any household appliance or light that is connected through a lamp or appliance module to your household wiring. Set up your own "home network" and make your home work for you!

The wireless transceiver module also functions as an appliance module. Simply plug an appliance into it, and you have full control over that appliance!

Note: For larger X10 systems, you will need 1 Transceiver per house-code setting. For example, if you have all your interior lights on House Code A, all your exterior lights on House Code B, and all your wireless cameras on House Code C, you would need 3 Transceivers. Simply set each transceiver to its corresponding House Code. For smaller X10 systems, you can have your cameras and lights on one house code (ex. House Code A), and would only need one Transceiver

Just wondering if that when trying to use an internet software for the cameras, do we need both modules because both perform the same operations. any body knows a bit of insight in this situation. thanks

[HA Dave]

Just wondering if that when trying to use an internet software for the cameras, do we need both modules because both perform the same operations. any body knows a bit of insight in this situation. thanks

When using the Internet software for the cameras (except if your using AHP) you will need the CMA19A and the TM751. The 19A will allow your PC to "talk" to your X10 devices through your PC, via RF. However most X10 devices depend on X10 power-line signals. The TM751 will ONLY receive RF then transmit them as power-line signals.

[Tuicemen]

You really need both. The CM19A sends and receives RF only and is a PC interface allowing your PC to talk to other x10 devices via RF
The TM751 receives RF signals and converts them to Powerline signals.
As Dave_x10_L stated:

However most X10 devices depend on X10 power-line signals

You need to be able to turn your cams on/off this is done via PLC not RF.