Cisco PA-MC-T3, Installing And Removing

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PA-MC-T3 Port Adapter Installation and Configuration
OL-2695-05
Chapter 3 Removing and Installing Port Adapters
Connecting a PA-MC-T3 Cable
Connecting a PA-MC-T3 Cable
To continue your PA-MC-T3 installation, you must attach the port adapter cables. The instructions that
follow apply to all supported platforms.
Use only 75-ohm RG-59 coaxial cables for these connections. You must supply the cables; they do not
ship with the PA-MC-T3. For specific cable requirements and options, see the
“Cables, Connectors, and
Pinouts” section on page 1-5 .
Note
You must attach the ferrite sleeves to 75-ohm coaxial cables that you plan to use for your connection.
Attach each ferrite sleeve as close as possible to the port adapter end of each 75-ohm coaxial cable (as
shown in
Figure 1-3 ).
We strongly recommend that you fasten together your transmit and receive cables along their entire
length, which reduces the effects of EMI. You can use standard heat-activated shrink tubing or cable ties
for this purpose.
You can also use a 75-ohm coaxial cable pair that is available from Cisco Systems (product number
CAB-ATM-DS3/E3).
Each T3 link requires separate receive and transmit connections to your external T3 equipment.
Connect the 75-ohm coaxial cables to the PA-MC-T3 as follows:
Step 1 Attach the 75-ohm coaxial cables directly to the BNC ports on the PA-MC-T3. Attach one end of a cable
to the port labeled TX and one end of a second cable to the port labeled RX. (See
Figure 3-3 .)
Figure 3-3 Attaching 75-Ohm RG-59 Coaxial Cables to a PA-MC-T3
10881
To TX port
on external
T3 equipment
To RX port
on external
T3 equipment
ENABLED
LOOP ALARM
OOF AIS LOS FERF
TX
MULTI-CHANNEL DS3
RX
BNC
cables
Attach ferrite
sleeve here
Attach ferrite
sleeve here