![background image](http://html1.mh-extra.com/html/advantech/ark-2121s/ark-2121s_user-manual_2858135027.webp)
19
ARK-2121S User Manual
Chapter 4
P
in Assignments
4.2.2
USB Connector
The ARK-2121S provides up to four USB interface connectors - 3 x USB 2.0 & 1 x
USB 3.0, which give complete Plug & Play. The USB interface is compliant with USB
UHCI, Rev. 2.0 & 3.0. The USB interface supports Plug and Play, which enables you
to connect or disconnect a device whenever you want, without turning off the com-
puter.
Figure 4.2 USB Connector [Upper (black): USB2.0 / Down (blue): USB 3.0]
4.2.3
Ethernet Connector
ARK-2121S provides two RJ45 LAN interface connectors, which are fully compliant
with IEEE 802.3u 10/100/1000 Base-T CSMA/CD standards. LAN1 is equipped with
Intel I218 GbE and LAN2 is equipped with Intel I210 GbE. The Ethernet ports use
standard RJ-45 jack connectors with LED indicators on the front side to show Active/
Link status and Speed status.
Figure 4.3 Ethernet Connector
Table 4.2: USB Connector Pin Assignments
Pin
Signal Name
Pin
Signal Name
1
+5V
2
D-
3
D+
4
GND
5
SSRX-
6
SSRX+
7
GND
8
SSTX-
9
SSTX+
10
+5V
11
D-
12
D+
13
GND
Table 4.3: Ethernet Connector Pin Assignments
Pin
Signal Name
Pin
Signal Name
1
TX+(10/100),BI_DA+(GHz)
5
BI_DC-(GHz)
2
TX-(10/100),BI_DA-(GHz)
6
RX-(10/100),BI_DB-(GHz)
3
RX+(10/100),BI_DB+(GHz)
7
BI_DD+(GHz)
4
BI_DC+(GHz)
8
BI_DD-(GHz)
1
8
Summary of Contents for ARK-2121S
Page 1: ...User Manual ARK 2121S Outdoor HD NVR w 4 PoE Ports...
Page 9: ...Chapter 1 1 General Introduction This chapter gives background information on ARK 2121S series...
Page 14: ...ARK 2121S User Manual 6...
Page 20: ...ARK 2121V User Manual 12...
Page 25: ...Chapter 4 4 Pin Assignments This chapter explains Pin Assign ments of ARK 2121S Series...
Page 32: ...ARK 2121S User Manual 24...
Page 33: ...Chapter 5 5 BIOS settings This chapter introduces how to set BIOS configuration data...
Page 57: ...Appendix A A WDT Sample Code...
Page 59: ...51 ARK 2121S User Manual Appendix A WDT Sample Code...