Quatech SSCLP-300 - Manual (Page 11)

Jumpers J10-J23 define the options for this card:
X8
X4
X2
J3
J4
J5
CTS0_SEL
AUX0_SEL0
AUX0_SEL1
J10
J11
J12
RCLK0_SEL
TGL0_SEL0
TGL0_SEL1
J13
J14
J15
RXEN0_SEL
CTS1_SEL
AUX1_SEL0
J16
J17
J18
AUX1_SEL1
RCLK1_SEL
TGL1_SEL0
J19
J20
J21
TGL1_SEL1
RXEN1_SEL
J22
J23
SPAD J2
Figure 2 - Right Card Edge Jumpers
DSCLP/SSCLP-200/300 User's Manual 11