Cisco Systems 6100 appendix Two-to-Three Cables

3 Cisco 6100 Series System Cables 78-6643-01 09/27/99

3.3.1 Two-to-Three Cables

To associate the MDF wire pairs and the MC modem ports, the two-to-three cable remaps the wire pairs from the MC connectors to the MDF connectors. The cable is used in systems with dual-port DMT-2 ATU-C modules installed in the MC.

Table 3-6 lists the backplane connectors and the part numbers for the two-to-three cables connecting the MC to the MDF in a Direct Connect without a PSC configuration.

Note This cable is not recommended if you plan on expanding your system to quad-port xTU-C modules, which will be available in future releases.

Table 3-6	Connectors and Part Numbers for Two-to-Three Cables—MC to MDF
	Connections
Backplane Connector			Cisco Part Number
MC	MDF		Kit	Subassembly
J39, J40, J41	P1	(slots 21 to 28) or	CAB-MC-3:2-REPIN	72-1590-02
	P2	(slots 1 to 8)		(right cable)
J42, J43, J44	P1	(slots 31 to 38) or	CAB-MC-3:2-REPIN	72-1591-02
	P2	(slots 13 to 20)		(left cable)

Note When you use the two-to-three cable, see Table C-4 on page C-11 for port mapping information.

Figure 3-11 shows the two-to-three cable.

Figure 3-11 Two-to-Three Cable

Right cable

P1

Slots 21 to 28

P2

Slots 1 to 8

Left cable

P1

Slots 31 to 38

P2

Slots 13 to 20

J41

J40

J39

J44

J43

J42 23470

3-12Cisco 6100 Series User Guide