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Connecting to Network Devices
45
Four types of connections are required:
■
Connecting to an ATM Optical Interface
■
Connecting the Control Terminal
■
Connecting to the Ethernet Port
■
Connecting to the Power Source
Connecting to an
ATM Optical Interface
To connect a CoreBuilder 7000 family ATM switch port to another
CoreBuilder unit, to a LinkSwitch 2700 ATMLink adapter, or to any device
with an ATM optical interface:
1
Prepare an optical cable (Tx Rx). You may want to mark the ends of the
cable so you can identify them.
2
Snap the cable into a CoreBuilder 7000 family ATM switch port in one of
the interface modules.
3
Snap the other end of the cable into the selected optical interface of the
other ATM device. Make sure that each wire connects to Rx on one end
and Tx on the other.
4
Repeat steps 1-3 for all ATM port connections to the CoreBuilder.
Perform steps 1-4 above when connecting a DS-3 coax cable set (Rx and
Tx).
Fiber Optic Power Budget of 3Com Products
Table 8 shows the power budget of various 3Com products. Use this
table when you calculate the length of fiber optic cable you need to
connect to the CoreBuilder 7000 family ATM switch. See fiber optic cable
manufacturers data for more information.
.
Table 8
Power Budget for Various 3Com Products
Product
Mode
(nm)
Min TX.
O-Pwr
(dBM)
Receiver
Sens.
(dBM)
Budget
(dB)
Distance
(KM)
Specification
4-Port/8-Port
OC-3 MM
MM-1300 -19 -30 11 2 HP#:HFBR-5205
4-Port/8-Port
OC-3 SM
SM-1300 -15 -33 18 15 SDX-1155B
CoreBuilder
7201 (ATM port)
MM-1300 -19 -30 11 2 HP#:HFBR-5205