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B-3
Cisco 800 Series Routers Hardware Installation Guide
78-5373-04
Appendix B Specifications and Cables
Port Connector Pinouts
Table B-4 Cisco 804 IDSL Ethernet Connector Pinouts for Port 1 Only (RJ-45)
Pin
Function
(TO HUB/TO PC
Button –
OUT Position)
Function
(TO HUB/TO PC
Button –
IN Position) Pin
Function
(TO HUB/TO PC
Button –
OUT Position)
Function
(TO HUB/TO PC
Button –
IN Position)
A1 RX+ TX+ A2 RX– TX–
A3 TX+ RX+ A4 Unused Unused
A5 Unused Unused A6 TX– RX–
A7 Unused Unused A8 Unused Unused
Table B-5 Cisco 803 and Cisco 804 Ethernet Connector Pinouts for
Ports 1, 2, and 3 (RJ-45)
Pin Function Pin Function
B1 RX3+ B2 RX3–
B3 TX3+ B4 Unused
B5 Unused B6 TX3–
B7 Unused B8 Unused
C1 RX2+ C2 RX2–
C3 TX2+ C4 Unused
C5 Unused C6 TX2–
C7 Unused C8 Unused
D1 RX1+ D2 RX1–
D3 TX1+ D4 Unused
D5 Unused D6 TX1–
D7 Unused D8 Unused
Table B-6 Cisco 804 IDSL Ethernet Connector Pinouts for
Ports 2, 3, and 4 (RJ-45)
Pin Function Pin Function
B1 RX4+ B2 RX4–
B3 TX4+ B4 Unused
B5 Unused B6 TX4–
B7 Unused B8 Unused
C1 RX3+ C2 RX3–
C3 TX3+ C4 Unused
C5 Unused C6 TX3–
C7 Unused C8 Unused
D1 RX2+ D2 RX2–