The security only serial receiver is a gateway between EchoStream one-way security transmitters and an head end application using an RS-232 serial interface.
The security only serial receiver is available in two configurations. Use part number EE4000 for 868-870 Mhz Europe; use part number EN4000 for 902-928 Mhz North America, 915-928 Mhz Australia, and 922-928 Mhz New Zealand.