SNBC BTP-R880NPI, Руководство по обслуживанию, Страница: 16 / 45

BTP-R880NPII Service Manual
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3.3 Ethernet interface
3.3.1 Ethernet interface connector and specification
The parameters of network interface socket match 10BASE-T standard of IEEE802.3.
3.3.2 Ethernet interface electric specification
Output signal: Efficient differential mode voltage more than 450mV, top voltage more than 13V.
Common mode alternating top voltage is less than 2.5V.
Input signal: differential mode voltage more than 160mV is regarded as efficient mode voltage.
3.3.3 Troubleshooting of the Interface Module
Detailed information please refer to Quick Reference to Ethernet Interface Module.
Pin Signal name Introduction
1 TX+ Data
2 TX- Data sending-
3 RX+ Data rec
4 NC Reserve
5 NC Reserve
6 RX- Data receiving -
7 NC Reserve
8 NC Reserve