Appendix F: SMB-200/2000 Cables and Connectors
WAN Cables and Connectors
SmartBits System Reference 239
WAN Cables and Connectors
WN-3415, WN-3420 Cables
Straight-through Pin Configuration (Smartbits P/N 620-0102-001):
Typically, you use the straight-through cable to connect the card to a telephone company’s
demarcation point, and crossover cable to connect the card to another CSU/DSU or router/
switch.
Description RJ48C (J1) RJ48C TE (J2) Signal
Pin# Pin#
Twisted Pair #1 Signal J1-1 J2-1 RX TIP
Twisted Pair #1 RTN J1-2 J2-2 RX RING
Twisted Pair #2 Signal J1-4 J2-4 TX TIP
Twisted Pair #2 RTN J1-5 J2-5 TX RING
Crossover Pin Configuration (SmartBits P/N 620-0103-001 cable):
Description RJ48C (J1) RJ48C TE (J2) Signal
Pin# Pin#
Twisted Pair #1 Signal J1-1 J2-4 RX TIP
Twisted Pair #1 RTN J1-2 J2-5 RX RING
Twisted Pair #2 Signal J1-4 J2-1 TX TIP
Twisted Pair #2 RTN J1-5 J2-2 TX RING
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WN-3415, WN-3420 Connector
Connector Type: RJ48C or RJ45C
Pin Signal
1 RX_RING
2RX_TIP
3 Not Connected
4 TX_RING
5TX_TIP
6 Not Connected
7 Not Connected
8 Not Connected
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