2 Hardware Configuration
The
This chapter lists a number of optional jumper settings that control various hardware features. These jumpers, located in a row along the top of the board , control how signals are routed from the UARTs to the connector, as well as special options.
Any changes from the factory default should be made before installing the
2.1 Signal Connections
The
pairs: TxD, RxD, AUXOUT, and AUXIN. TxD and RxD are always present at the connector. The AUXOUT and AUXIN signals can be used to support RTS/CTS handshaking, external clocking, or external signal loopback. The factory default configuration, as shown in Figure 2 with no jumpers across any of the pins, is a loopback of AUXOUT to AUXIN at the connector, with RTS and CTS looped back on the board. There is an extensive discussion of this topic in section 6.
Jumper J1 defines the options for this card:
J1 | TGL1 | AUX1 | TGL2 | AUX2 | TGL3 | AUX3 | TGL4 | AUX4 | X8 |
| |||||||||
| 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| 1 | 3 | 15 | 7 | 9 | 11 | 13 | 15 | 17 |
Figure 2 - Top Card Edge Jumpers
2.1.1 AUX(1,2,3,4) (pins 3 and 4, 7 and 8, 11 and 12, 15 and 16)
The 1, 2, 3, or 4 will designate which port the settings will be applied to. With NO jumpers across the “AUX” pins, CTS = RTS and AUXIN = AUXOUT. With a jumper on any of the “AUX” pins, CTS = AUXIN and AUXOUT = RTS for the given port.
2.1.2 TGL(1,2,3,4) (pins 1 and 2, 5 and 6, 9 and 10, 13 and 14)
The 1, 2, 3, or 4 will designate which port the settings will be applied to. With NO jumpers across the “TGL” pins, TXEN = 1. With a jumper on any of the “TGL” pins, TXEN will be set to
Quatech | 6 |
