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Connecting to the Network
EMM-E6 Installation Guide 3-13
3.5.2 Connecting a 10BASE-F Segment to an EPIM-F2
or EPIM-F3
Each fiber optic link consists of two strands of fiber optic cabling: the
transmit (TX) and the receive (RX). The transmit strand from a module
port connects to the receive port of a fiber optic Ethernet device at the
other end of the segment. The receive strand of the applicable port on the
module connects to the transmit port of the fiber optic Ethernet device.
Cabletron Systems recommends labeling fiber optic cables to indicate
receive and transmit ends. Many cables are prelabeled, providing
matching labels or tapes at both ends of each strand of cable.
1. Remove the protective plastic covers from the fiber optic ports on the
applicable port on the module, and from the ends of the connectors on
each fiber strand.
2. Attach one fiber to the applicable receive port on the module. Insert
the ST connector into the port with the alignment slot on the connector
inserted over the locking key on the port. Turn the connector
clockwise to lock it down.
NOTE
For proper operation, the EPIM-F2 module to be configured for
use in the EMM-E6 module must be of EPIM board revision 05
or greater. EPIM-F3 modules used in the EMM-E6 must be of
EPIM board revision 02 or greater. Board revision numbers are
found following the part number printed on the Printed Circuit
Board of the EPIM.
!
CAUTION
Do not touch the ends of the fiber optic strands, and do not let
the ends come in contact with dust, dirt, or other contaminants.
Contamination of cable ends causes problems in data
transmissions. If necessary, clean contaminated cable ends
using alcohol and a soft, clean, lint-free cloth.
ICH1Book Page 13 Tuesday, August 6, 1996 3:06 PM