A 15-pin SUB-D female connector I/Q CH1 provides the inputs and outputs for I/Q signals (option CMU-B17).
The pin assignment is as follows:
I/Q CH1 Connector
| Pin | Signal | Input (I) / Output (O) / Bidirectional (B) |
Description |
| 1 | GND | – | – |
| 2 | MOD_ I_ IN | I | I input, TX path, max ±0.5 V, impedance 50 Ohm |
| 3 | MOD_Q_IN | I | Q input, TX path, max ±0.5 V, impedance 50 Ohm |
| 4 | GND | – | – |
| 5 | MOD_I_OUT | O | I output, TX path, max ±0.5 V, impedance 50 Ohm |
| 6 | MOD_Q_OUT | O | Q output, TX path, max ±0.5 V, impedance 50 Ohm |
| 7 | GND | – | – |
| 8 | DEMOD_I_IN | I | I input, RX path, max ±0.5 V, impedance 50 Ohm |
| 9 | DEMOD_Q_IN | I | Q input, RX path, max ±0.5 V, impedance 50 Ohm |
| 10 | GND | – | – |
| 11 | DEMOD_I_OUT | O | I output, RX path, max ±0.5 V, impedance 50 Ohm |
| 12 | DEMOD_Q_OUT | O | Q output, RX path, max ±0.5 V, impedance 50 Ohm |
| 13 | GND | – | – |
| 14 | – | – | – |
| 15 | – | – | – |