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DT122-GH Installation Guide
Panel
Front View
Rear View
AC Socket
Power LED
(green)
Reset Button
Power Button
HDD LED
(red)
Line-in
Line-out
Mic-in
USB 3.0_2 USB 2.0_2
USB 3.0_1 USB 2.0_1
DP++_0 DP++_2
DP++_1 DP++_3
LAN 1 LAN 2
COM 1
COM 2
Note:
DFI reserves the right to change the specications at any time prior to the product's release. For
the latest revision of product documentation, please contact your sales representative.
2
The system can accommodate
one 3.5" HDD or two HDDs.
1. To install a 2.5" HDD, use
the 2.5" HDD bracket as
shown on the right.
Installing a 2.5" or 3.5" SATA Drive
Installing a 2.5" SATA Drive
Mounting Screws
Removing the Chassis Cover
1. Make sure the system and all other peripheral devices connected to it have been
powered-off.
2. Disconnect all power cords and cables.
3. The 4 mounting screws on the left and right sides of the system are used to
secure the cover to the chassis. Remove these screws and put them in a safe
place for later use.
Installing a SODIMM
The system can accommodate
two DDR4 memory modules (dual
channel).
SO_DIMM1
(closer to the center of
the board)
SO_DIMM2
Installing an M.2 Card
The onboard M.2 Type 2280 connector
(M Key) supports PCIe NVMe modules
up to PCIe Gen 3.0 x4 bandwidth.
SATA Drive
HDD Bracket
Mounting Screw
3
2. Place the HDD bracket with the installed SATA drives back in the chassis and use
the provided mounting screws to attach the HDD bracket to the drive bay.
Mounting Screw
Drive Bay
Mounting Screws
Installing a 3.5" SATA Drive
spacer
Drive bay
spacer
1. Insert spacers into the
anti-shock bumpers of the
HDD bracket. You will nd
the spacers in the HDD
drive bay kit.
To install a 3.5" HDD, please
directly mount the HDD on the
drive bay as shown on the right.
Mounting Screws
Drive Bay
Mounting Screw
2. Align the mounting holes on the SATA drive with the mounting holes on the drive
bay, and then use the provided mounting screws to install the SATA drive on the
drive bay.
3. Place the drive bay back in the chassis and install the drive bay with 4 mounting
screws.
Mounting Screw
Mounting Screw
4
Board Layout and Jumper Settings
DDR4_2 SODIMM
DDR4_1 SODIMM
COM 2 RS232/422/485 Select
(JP2, JP3, JP4)
1
2
9
COM 3~6
10
2
9
10
1
Front
Audio
(JP4)
(JP2)
(JP3)
USB 3
1
4
COM 1 (Top)
COM 2 (Bottom)
PCIe 1 (PCIe x16)
M.2 M Key (2280/2242)
4-pin Vertical Type
3
4-pin
Right
Angle
Type
(opt.)
5
6
1 2
SATA
Standard/Power
Select (JP5)
SATA 0
1
SATA 1
1
1
4
SATA 0
Power
1
4
SATA 1
Power
2
1
6 5
COM 2 RS232/Power
Select (JP1)
2
1
6 5
2
1
6 5
2
1
6 5
TPM
CPU Fan
Standby LED
DP++ 0 (Top)
DP++ 1 (Bottom)
DP++ 2 (Top)
DP++ 3 (Bottom)
LAN 1
USB 2 (Top)
USB 1 (Bottom)
USB 3.0
Buzzer
Battery
1
Clear CMOS (JP6)
AMD
Ryzen
V1000Series/
R1000Series
Realtek
Audio
Codec
Chassis Intrusion
1
System Fan
1
1
1
Auto Power-on Select (JP7)
1
2
12
Front Panel
11
Nuvoton
NCT6116D
LAN 2
USB 2 (Top)
USB 1 (Bottom)
USB 2.0
Line-in
Line-out
Mic-in
1
2
10
10
9
10
9
1
2
10
S/PDIF
1
SPI
Flash
BIOS
USB 3.0 (for V1000)
USB 2.0
SATA 3.0
SATA 3.0
USB 2.0 (for R1000)
TM
USB 3-4
USB 1-2
DC-in
Jack
(opt.)
1
2
3
4
COM 2 RS232/Power Select JP1
RS232 (default) 1-3 (RI-), 2-4 (DCD-) On
RS232 with power 3-5 (+5V), 4-6 (+12V) On
COM 2 RS232/422/485 Select JP2 JP3/JP4
RS232 (default) 1-2 On 1-3, 2-4 On
RS422 Full Duplex 3-4 On 3-5, 4-6 On
RS485 5-6 On 3-5, 4-6 On
SATA Standard/Power Select JP5
Standard (default) 1-3, 2-4 On
SATA with pin 7 VCC (+5V) 3-5 (SATA 0), 4-6 (SATA 1) On
Clear CMOS JP6
Normal (default) 1-2 On
Clear CMOS 2-3 On
COM 1: RS232
COM 2: RS232 with power/
RS422/RS485
6
7
8
9
1
2 3 4
5
DCD
(or +12V)
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
(or +5V)
DATA+
DATA-
N.C.
N.C.
GND
2
4
5
3
1
7
6 8
9
N.C.
N.C.
N.C.
N.C.
RS422
N.C.
N.C.
N.C.
N.C.
2
4
5
3
1
7
6 8
9
RXD+
RXD-
TXD+
TXD-
GND
RS232
933-DT1222-000G
EVT
A54801917
May 23, 2019
RS485
COM 3~6: RS232
9
10
GND
RXD5
TXD3
2
1
TXD4
RXD3
TXD5
TXD6
RXD6
GND
RXD4
Auto Power-on Select JP7
Power-on via AC power (default) 1-2 On
Power-on via power button 2-3 On
-
1
-
2
-
3
-
4
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