5.
Pin Assignment and Dimension
Fig 5.1 EG-SR-7100A Pin Assignment
PIN NAME
Functions
I/O
RESET
Reset (Active High)
Input
TXD
RS-232 Data Output
Output
RTS
RS-232 Request To Send
Output
Optional
DTR
RS-232 Data Terminal Ready
Output
Optional
RXD
RS-232 Data Input
Input
CTS
RS-232 Clear To Send
Input
Optional
DSR
RS-232 Data Set Ready
Input
Optional
TPRX- Ethernet
Differential
Input-
Input
TPRX+ Ethernet
Differential
Input+
Input
TPTX- Ethernet
Differential
Output-
Output
TPTX+ Ethernet
Differential
Output
/LINK_LED Link
LED
Output
/10_LED
10 Mbps LED
Output
/100_LED 100
Mbps
LED
Output
/COL_LED Collision
LED
Output
Status
High : not connected,
Low : connected
Output
VCC 3.3V
Power
Power
Table 5.1 EG-SR-7100A Module Pin Functions
Hardwired Internet Connectivity Wizard (WIZnet, Inc.)
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