User Manual

2-21
Chapter 2: Motherboard information
19. NANO SIM Card slot
This slot connects to a NANO SIM card.
J3455T-IM-A
NANO_SIM
NOTE: The serial port cable is purchased separately.
20. COM Port header (10-pin COM1~COM6)
This header is for a serial (COM) port. Connect the serial port cable to this
header, then install the module to a slot opening at the back of the system
chassis.
J3455T-IM-A
COM6
COM5
COM4
COM3
COM2
COM1
PIN 1
RXD
DTR#
DSR#
CTS#
DCD#
TXD
GND
RTS#
Ring
A
B
C
D
E
F
A
B
C
D
E
F
Connector type
BOX header 2x5p, K10, 2.00mm pitch