The configuration for serial as shown on the ADTPRO website shows
SW1: 1001111 SW2: 1101100
With regard to SW2 numbers 3 and 4 (as read from left to right), they are shown to be configured as 01
Table 2-4 of the SSC manual shows
11 - no parity
10 - odd parity
00 - even parity
so what is 01?