User manual

Chapter 1 Introduction
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2. The Ethernet connector for the ET100R supports 10/100 Half/Full auto negotiation and auto MDIX.
3. The Two LEDs have the following meanings:
a. 100, when lit this LED indicates the Ethernet is 100Base-TX, when off the Ethernet is 10Base-T
b. Link/ACT, when lit the LED indicates the Ethernet has link, when flashing it indicates activity
4. The RS-232 uses a 9pin mini-DIN connector. A mini-DIN to DB9 serial cable is provided with the router for console
configuration.
Figure: Mini-DIN 9 Pin Assignment
Pin Circuit Direction Description
1 NC
2 RD Output Receive Data
3 TD Input Transmit Data
4 DTR Input
5 GND -- Signal Ground
6 DSR Output Data Set Ready
7 RTS Input Request To Send
8 CTS Output Clear To Send
9 NC
Table: Mini-DIN Pin Assignment
Whether included in the original purchase of one of our DSU/CSU units or purchased separately as an upgrade
item, we would again like to thank you for choosing the ET100R router module.