Connector; Fan Connector (Cn1); Cmos Battery Connector (Bat) - AXIOMTEK CEM521 User Manual

2.5

Connector

Signals go to the other parts of the system through connectors. Loose or improper connection
might cause problems, please make sure all connectors are properly and firmly connected.
Here is a summary table which shows connectors on the hardware.
Connector
CN1
BAT
SS1
SS2
DIMM1
SDIMM1

For single memory channel configuration, install memory module in channel 0
(DIMM1) DDR4 SO-DIMM socket.

For dual memory channel configuration, install memory modules of the same
Note
size, chip width, density and rank in both channel 0 (DIMM1) and channel 1
(SDIMM1) DDR4 SO-DIMM sockets.
2.5.1

Fan Connector (CN1)

The CN1 is a 3-pin (pitch=1.5mm) connector, compliant with JST S3B-ZR-SM4A-TF, for
fan interface.
Pin
1
2
3
2.5.2

CMOS Battery Connector (BAT)

The BAT is a 2-pin (pitch=1.25mm) connector which is compliant with Molex
0532610271.
Pin
1
2
Module and Pin Assignments
Description
Fan Connector
CMOS Battery Connector
COM Express
COM Express
Channel 0 DDR4 SO-DIMM Socket
Channel 1 DDR4 SO-DIMM Socket
Signal
GND
+12V level
Fan speed feedback
Signal
+3V level
GND
CEM521 COM Express
TM
Connector
TM
Connector
1
3
1
2
TM
Type 6 Module
1 3
1 2
11