Satellite receiver connection
A satellite receiver (such as RSAT2 or REX3) can be connected to the E1 or E2 port on the REX A receiver. In this case, REX A acts as the main receiver with activated flight stabilization and RSAT2 is used as a backup in case signal loss occurs. You can additionally use the Double Path mode in your transmitter.
REX A settings:
| Fail-Safe | Fail-Safe type | Output period | E1 | E2 | Stabilize EX Bus |
| Enabled | Intelligent | 7-20ms | PPM Input or EX Bus Input (V1.12+) |
E.g. Sensor | NO |
RSat2 settings:
| Fail-Safe | Output period | Output type | Receiver mode | PPM mode |
| Disabled | Auto | PPM positive or EX Bus (Assist V1.12+) |
Normal | Direct |
Central Box connection
The REX A receivers are able to generate the EX Bus serial output with up to 16 stabilized servo channels. This stabilized output can be used for airplane models equipped with a Central Box.
1) REX A & RSat 2
2) REX A & RSat 900
3) REX A & RSat 2 + RSat 900
4) REX A & RSat 2 + RSat 900
- Requires at least Central Box 200 version 1.30
REX A settings:
| Fail-Safe | Fail-Safe type | Output period | E1 | E2 | Stabilize EX Bus |
| Disabled | Intelligent or Off *) | Auto or 7-20ms | PPM Input or EX Bus Input (V1.12+) |
EX Bus | YES |
RSat2 or RSat 900 settings:
| Fail-Safe | Output period | Output type | Receiver mode | PPM mode |
| Disabled | Auto | See the picture | Normal | Direct |
*) In the Intelligent mode, the REX A stabilizes always the EX Bus output and the Central Box should never switch to the backup receiver while the REX A is functioning correctly. REX A stabilizes the EX Bus output always, even if it does not have signal from the transmitter.
On the other hand, if the Fail-Safe type is set to Off - Assist disabled (min. REX A version must be 1.10), the receiver will disable its EX Bus output when it loses signal from both wireless and PPM links. This will allow Central Box to switch over to the secondary (backup) serial input.
