Cabletron Systems EMC39-12 用户手册
Chapter 1:
Introduction
Page 1-2
EMC39-12 User’s Guide
1.2 GETTING HELP
If you need additional support related to the EMC39-12, or if you have
any questions, comments, or suggestions concerning this manual, contact
Cabletron Systems Technical Support:
any questions, comments, or suggestions concerning this manual, contact
Cabletron Systems Technical Support:
By phone
(603) 332-9400
Monday-Friday; 8
Monday-Friday; 8
A
.
M
. – 8
P
.
M
. Eastern Time
By CompuServe
GO CTRON from any ! prompt
By Internet mail
support@ctron.com
By FTP
ctron.com (134.141.197.25)
Login
anonymous
Password
your email address
1.3 EMC39-12 OVERVIEW
The EMC39-12 converts Ethernet IEEE 802.3 10BASE-T signals to
Ethernet IEEE 802.3j 10BASE-FL signals. The rear panel has a 50-pin
Champ connector (RJ71) that supports twelve twisted pair segments. The
front panel has twelve 10BASE-FL single mode ST ports. Figure 1-1
shows the EMC39-12 ports. The 10BASE-FL connectors are backward
compatible with FOIRL connectors.
Ethernet IEEE 802.3j 10BASE-FL signals. The rear panel has a 50-pin
Champ connector (RJ71) that supports twelve twisted pair segments. The
front panel has twelve 10BASE-FL single mode ST ports. Figure 1-1
shows the EMC39-12 ports. The 10BASE-FL connectors are backward
compatible with FOIRL connectors.
Each of the rear panel twisted pair ports has a corresponding fiber port.
For example: Twisted pair Port 1 converts signals to fiber optic port 1,
twisted pair port 2 converts signals to fiber optic port 2, etc.
For example: Twisted pair Port 1 converts signals to fiber optic port 1,
twisted pair port 2 converts signals to fiber optic port 2, etc.
Figure 1-1
The EMC39-12
Rear View
12X
1X
Front View
EMC39-12
Ethernet Media Converter
WITH
LANVIEW
TPLINK
XMT
RCV
FOLNK
12 11 10 9 8 7 6 5 4 3 2 1
PWR
12
10
9
8
7
6
5
4
3
2
1
RX TX
RX TX
RX TX
RX TX
RX TX
RX TX
RX TX
RX TX
RX TX
RX TX
RX TX
RX TX
11
EMC39-12
Ethernet Media Converter
emc39bk Page 2 Monday, February 12, 1996 4:21 PM