3-66
3.19.3.2
Ethernet Connectors J2 and J3
ETH2 and ETH3 connectors require straight-through cables to connect to external equip-
ment. Refer to Table 3-23 for pinout/function.
3.19.3.3
PPP Connector J4
Proposed wiring compatible with TIA-568B on an RJ45 connector. Using this pinout, MDR-
8000 radios could be interconnected using a standard four twisted pair (8 wire) straight-
through wired CAT5 Ethernet Crossover patch cord, provided that the clocks port on one
end is provisioned to
receive clock
instead of
transmit clock
. Refer to Table 3-24 for pinout/
function.
Table 3-23 ETH2 and ETH3 Connectors J2 and J3 Pinout
PIN FUNCTION
1 RX+
2 RX+
3 TX+
4/5 GND (via 75 ohm resistor)
6 TX-
7/8 GND (via 75 ohm resistor)
Table 3-24 PPP Connector J4 Pinout
PIN FUNCTION DTE DCE
1 TXDAP OUT IN
2 TXDAN OUT IN
3 RXDAP IN OUT
5 TXCAP OUT IN
6 RXDAN IN OUT
7 RXCAP IN OUT
8 RXCAN IN OUT
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