Connecting A Twisted Pair Segment To A Spim-T - Cabletron Systems MRX Installation Manual

3.5.3 Connecting a Twisted Pair Segment to a SPIM-T

The X to the left of the RJ-45 port on the SPIM-T indicates that the
port is internally crossed over. This eliminates the need to cross over
the twisted pair segment attached to the SPIM-T port. To connect a
SPIM-T to a Twisted Pair Segment:
1. Connect the twisted pair segment (see Figure 3-9) to the module
by inserting the RJ-45 connector on the twisted pair segment into
the RJ-45 port on the module.
Figure 3-9. Connecting a Twisted Pair Segment to a SPIM-T
2. Check that the LNK LED for the port is lit. If the LED is not lit,
perform each of the following steps until it is:
a. Check that the 10BASE-T device at the other end of the
twisted pair segment is powered up.
b. Verify that the RJ-45 connector on the twisted pair segment
has the proper pinouts (see Figure 3-10).
c. Check the cable for continuity.
d. Check that the twisted pair connection meets dB loss and
cable specifications outlined in 10BASE-T Twisted Pair
Network Requirements.
SP
X
INSTALLATION
SPIM-T
RCV
LNK
Page 3-11