Advantech ARK-DS520, User Manual

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7 ARK-DS520 User Manual
Chapter 2
H
ardware
Installation
2.2.2 USB 1~4 Connectors
The ARK-DS520 provides four USB interface connectors (2 x USB ports on the front-
side; and 2 x USB ports on the rear-side), which gives complete Plug & Play and hot
swapping capability for up to 127 external devices. The USB interface is compliant
with USB UHCI, Rev. 2.0. The USB interface supports Plug and Play, which enables
you to connect or disconnect a device without turning off the computer.
Figure 2.4 USB 1~4 Connectors
2.2.3 COM 1,2 Connector
ARK-DS520 provides two D-sub 9-pin connectors serial communication interface
ports. The ports support RS-232 mode communications.
Figure 2.5 COM 1,2 Connector
Table 2.1: USB 1~4 Port Pin Assignments
Pin Signal Name
1 VCC
2 USB Data-
3 USB Data+
4 GND
Table 2.2: COM 1,2 Connector Pin Assignments
Pin Signal Name
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI