7
Adding the MCMP/TDM Flex Option to a
Model 3610 DSU
An MCMP/TDM circuit card assembly (CCA) can be added to an installed DSU. The
MUX CCA must be physically and electrically connected to the DSU. The Model 3610 is
installed into a larger base.
The MCMP/TDM Flex model is designed so that each port can be set individually to
either EIA-232 or V.35 by using either the front panel, an async terminal, or an NMS.
The firmware version must be 6.33 or greater.
Adding a MUX CCA
To upgrade a 3610 DSU with a MUX CCA:
Procedure
1. Fold the TDM/Flex or TDM/Flex flat cable over the side of the new expanded base.
2. Position the DSU over the expanded base.
3. Proceed to
Reassembling the DSU
on page 8.
Replacing an Installed MUX CCA
To replace an existing MUX CCA:
Procedure
1. Release the two snaplocks holding the MUX CCA in the base. Remove the MUX
CCA.
Snaplocks
496-15229
TDM/MCMP
Flat Cable
2. Place the new CCA into the two snaplocks in the base.
