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The DataComm 551 can be mounted in the following housings:
DataComm Enclosure (model DE-7)
One DataComm 551 can be mounted in a standalone DataComm Enclo-
sure.
If it is necessary to remove the pc card from the enclosure:
1. Disconnect ac power by pulling the plug from the wall receptacle.
2. Disconnect phone connections.
Disconnect power supply and telco connections
prior to removal of the cover.
3. Remove the cover, as shown in Figure 2-2.
4. Disconnect the power supply connector from J5, which is mounted at
the rear center of the card (see Figure 2-1).
When reinstalling the pc card, reinstall the power supply connector at J5
before replacing the plug in the wall receptacle.
DataComm FourPak Enclosure (model DFP-11)
Four DataComm 551s or a combination of DataComm 551s and other plug-
ins (PMC-100 Performance Monitor Cards, DataComm 552 DSUs, and
DataComm 596 Modems only) can be mounted in a
DataComm FourPak Enclosure. If it is necessary to remove the pc card
from the enclosure, use the procedure for the DataComm Enclosure.
DataComm Modem Shelf (models DS-1, DS-5R, and DC-5NR)
Up to 16 DataComm 551s or a combination of DataComm 551s and other
plug-ins (including DataComm 552 DSUs and DataComm 596 Modems)
can be installed in a rack-mountable
DataComm 551 can be installed in any slot; however, for each DataComm
551, one adapter cable and coupler (P/Ns 027H242-X04 and 209-038-002), or
cable P/N 022H024-XXX, are required to connect the T1 line.
GDC TriPak Shelf (models TPS-1 and TPS-2)
Up to three DataComm 551s or a combination of DataComm 551s and other
plug-ins (including DataComm 552 DSUs and DataComm 596 Modems)
can be installed in a rack-mountable GDC TriPak Shelf.
NOTE
DataComm
INSTALLATION
standalone
Modem
Shelf.
A
2-3
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