Cabletron Systems MICROMMAC-22T, 42T manual Setting Phantom and RI/RO Switches

INSTALLATION

Table 3-1. Pinout Cross-Reference for TPIMs (Cont.)

	TPIM-T2/T4	TPIM-T2/T4	TPIM-T1	TPIM-T1
Signal	(RJ45)	(RJ45)	(DB9)	(DB9)
	Ring-In	Ring-Out	Ring-In	Ring-Out
RX+	4	6	1	9
RX-	5	3	6	5

3.9.1 Setting Phantom and RI/RO Switches

The Phantom Switch (shown in Figure 3-13) enables the port to “autowrap” if a trunk cable fails or is removed. The Phantom Switch should be set to the appropriate setting before TPIM installation. When attaching a Cabletron hub to the TPIM, leave the switch at the factory default setting of 1. When attaching a non-Cabletron device to the TPIM, such as an IBM 8228 MAU, use the 0 setting.

Ensure that the Ring-In/Ring-Out Switch is in the factory default RI/RO position. The MicroMMAC-T does not support the Station (S) setting.

NOTE: If the switch locations on the TPIM do not match the locations illustrated in Figure 3-13, refer to the TPIM Reference Card included with the TPIM. The TPIM Reference Card outlines switch locations and settings. For additional help, call Cabletron Systems Technical Support.

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