O U T P U T C O N F I G U R A T I O N SAUXIN ------+ +------ RCLKCTS --+ | | +-- DTR+-------------------+5 | o---o o+ o | 81 | o---o o+ o | 4+-------------------+RTS --+ | | +-- driver enableAUXOUT ------+ +------ XCLKJ2 _ Channel 1 J3 _ Channel 2Figure 21. Jumper configuration showing:(1) RTS transmission(2) CTS reception(3) XCLK/RCLK loopback(4) Full duplex operationAUXIN ------+ +------ RCLKCTS --+ | | +-- DTR+-------------------+5 | o+ o---o o | 81 | o+ o---o o | 4+-------------------+RTS --+ | | +-- driver enableAUXOUT ------+ +------ XCLKJ2 _ Channel 1 J3 _ Channel 2Figure 22. Jumper configuration showing:(1) RTS/CTS loopback(2) XCLK transmission(3) RCLK reception(4) Full duplex operationAUXIN ------+ +------ RCLKCTS --+ | | +-- DTR+-------------------+5 | o+ o+ o+ o+ | 81 | o+ o+ o+ o+ | 4+-------------------+RTS --+ | | +-- driver enableAUXOUT ------+ +------ XCLKJ2 _ Channel 1 J3 _ Channel 2Figure 23. Jumper configuration showing:(1) RTS/CTS loopback(2) XCLK/RCLK loopback(3) AUX OUT/AUX IN loopback(4) Half duplex operationiii