Kontron COMe Eval Carrier T6 - Manual (Page 35)

COM Express® Eval Carrier Type 6
34
5.12 Serial Interface
The PICMG COM.0 specification defines two optional 2-pin serial interfaces on
COM Express® connector pins A98/A99 and A101/A102 formerly used for 12V VCC
input. Both new interfaces are available directly on optional pin-header J9
and J10.
J9 and J10 allow both interfaces to be used as 2-pin RS232 interfaces COMA
and COMB with Kontron Adapter cable KAB-DSUB9-2 . Please check the
documentation of your module if this interface is supported and how to
configure.
Pin J9 (COMA) J10 (COMB)
1 n.c. n.c.
2 n.c. n.c.
3 RX0 RX1
4 n.c. n.c.
5 TX0 TX1
6 n.c. n.c.
7 n.c. n.c.
8 n.c. n.c.
9 GND GND
10 N.C. N.C.