Cisco Systems GRP-B RJ-45 Receptacle and Plug Horizontal Orientation, RJ-45 Receptacle Pinout

Replacing a GRP

Figure 6 RJ-45 Receptacle and Plug (Horizontal Orientation)

87654321

RJ-45 receptacle Category 5, UTP cable with plug

H11096

Warning The ports labeled Ethernet, 10BASE-T, Token Ring, Console, and AUX are safety extra-low voltage (SELV) circuits. SELV circuits should only be connected to other SELV circuits. Because the basic rate interface (BRI) circuits are treated like telephone-network voltage, avoid connecting the SELV circuit to the telephone network voltage (TNV) circuits.

Table 4	RJ-45 Receptacle Pinout
Pin	Description
1	TxD+
2	TxD–
3	RxD+
4	Termination Network
5	Termination Network
6	RxD–
7	Termination Network
8	Termination Network

Depending on your RJ-45 cabling requirements, use the cable pinouts shown in Figure 7 or Figure 8.

Figure 7

MDI wiring

1TxD+

2TxD–

3RxD+

6RxD–

Straight-Through Cable Pinout (Connecting MDI Ethernet Port to MDI-X Wiring)

MDI-X wiring

1 RxD+

2 RxD–

6 TxD–	H11007
3 TxD+

Figure 8

GRP

1TxD+

2TxD–

3RxD+

6RxD–

Crossover Cable Pinout (for Connecting Two GRPs)

GRP

1 TxD+

2 TxD–

6 RxD–	H11006
3 RxD+

Connecting to the Ethernet Port

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