4
E
N
G
LI
S
H
Rear Panel
1
CELL1
MAIN
2.4G/5G
WIFI
WAN/LAN1
LAN2
LAN3
GNSS
PW
R
G
N
D
IG
N
D
I-1
D
I-2
D
O
TX
R
X
GNSS
DWM-321
PWR
2.4G
5G
RESET
SIMA
SIMB
SIMA
SIMB
SIMA - - - CELL 2 - - - SIMB
SIMA - - - CELL 1 - - - SIMB
GNSS
DWM-321
PWR
2.4G
5G
SIMA
SIMB
SIMA - - - CELL 1 - - - SIMB
RESET
GNSS
DWM-3
21
PWR
2.4G
5G
SIMA
SIMB
SIMA - - - CELL 2 - - - SIMB
CELL2
AUX
CELL2
MAIN
CELL1
AUX
2.4G/5G
WIFI
CEL
L1
SIMA
SIMB
CEL
L2
CELL1
CELL2
SIMA
SIMB
CELL1
CELL2
3
5
6
7
8
10
9
2
4
Figure 3
#
Item
Description
1
CELL1 MAIN
SMA female connector - Primary 3G/4G (Main)
antenna for the primary cellular network
2
CELL2 AUX *
SMA female connector - Primary 3G/4G (Auxiliary)
antenna for the secondary cellular network
3
Terminal Block Slot
PWR/GND/IGN/DI/DO/TX/RX ports
4
CELL2 MAIN *
SMA female connector - Primary 3G/4G (Main)
antenna for the secondary cellular network
5
2.4G/5G WIFI
SMA male connector for the 2.4/5GHz Wi-Fi antenna
6
WAN/LAN1
Allows optional use of Ethernet as primary or
fallback WAN connection
7
LAN2 and LAN3
Connect Ethernet devices such as computers,
switches, external APs, and NAS
8
CELL1 AUX
SMA female connector - Primary 3G/4G (Auxiliary)
antenna for the primary cellular network
9
GNSS
SMA female connector for the GNSS antenna
10
2.4G/5G WIFI
SMA male connector for the 2.4/5GHz Wi-Fi antenna
1
Included antennas are interchangeable, but third party antennas may not be.
Table 3
* Only for the DWM-321D
DWM-321D/DWM-321
