Option settings Page 133 of 906Circuit Card Description and Installationconfigurations for both switches are shown in Table 43. To avoid systemproblems, switches SW15 and SW16 must not be configured identically.* To enable ports 1 and 2, set SW15 position 1 to ON. To enable ports 3 and 4, set SW16 position 1 to ON.+ For each X, the setting for this switch makes no difference, because it is not used.DTE/DCE modeEach serial port can be configured to connect to a terminal (DTE equipment)or a modem (DCE equipment). Instructions for configuring the DTE/DCEswitches SW2, SW3, SW4, SW5, SW6, SW7, SW8, and SW9 are shown inTable 44.Example: Port 1 is changed from DTE to DCE by reversing every switchposition on SW3 and SW2; i.e., switches that were off for DTE are turned onfor DCE, and switches that were on for DTE are turned off for DCE.Table 43QSDI paddle board address switch settingsSW15 Port 1 Port 2 Switch settingsSW16 Port 3 Port 4 1* 2+ 3 4 5 6 7 8Devicepairaddresses0 1 E X off off off off off off2 3 E X off off off off off on4 5 E X off off off off on off6 7 E X off off off off on on8 9 E X off off off on off off10 11 E X off off off on off on12 13 E X off off off on on off14 15 E X off off off on on on
