Appendix F: SMB-200/2000 Cables and Connectors
Ethernet Connectors
SmartBits System Reference 237
SX-7210 Connector
Connector type: MII 40-pin
Pin Numbering:
2019181716151413121110987654321
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
Pin Signal Pin Signal
1 +5V 13 TX_EN
2 MDIO 14 TXD<0>
3 MDC 15 TXD<1>
4 RXD<3> 16 TXD<2>
5 RXD<2> 17 TXD<3>
6 RXD<1> 18 COL
7RXD<0> 19 CRS
8RX_DV 20 +5V
9RX_CLK 21 +5V
10 RX_ER 22 - 39 COMMON (ground)
11 TX_ER 40 +5V
12 TX_CLK
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SX-7410B Internal Connector
The SX-7410B SmartCard contains an internal connector directly on the printed circuit
board. This connector provides triggers for external devices such as ocilloscopes, protocol
analyzers, or logic analyzers. Use a ribbon cable to connect to the external device. The
trigger is on the rising edge of 0 to +5 volts.
Use this pinout to determine how to wire the connector on the ribbon cable to an external
piece of test equipment:
Pin Signal
1 Transmit Trigger 6 Gnd
2 Receive Trigger 7 Collision
3TXen 8CRCError
4RxDv 9AlignmentError
5 Gnd 10 Spare
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