Cabletron Systems MicroMMAC 24T MICROMMAC- - Manual (Page 48)

INSTALLATION
3-13
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.
RX+ 4 6 1 9
RX- 5 3 6 5
Table 3-1. Pinout Cross-Reference for TPIMs (Cont.)
Signal
TPIM-T2/T4
(RJ45)
Ring-In
TPIM-T2/T4
(RJ45)
Ring-Out
TPIM-T1
(DB9)
Ring-In
TPIM-T1
(DB9)
Ring-Out