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December 1999

3611-A2-GZ43-30

HANDLING PRECAUTIONS

FOR

STATIC-SENSITIVE DEVICES

This product is designed to protect sensitive components from damage due to
electrostatic discharge (ESD) during normal operation. When performing
installation procedures, however, take proper static control precautions to
prevent damage to equipment. If you are not sure of the proper static control
precautions, contact your nearest sales or service representative.

HARDWARE SWITCHES

Switches on the TDM and MCMP circuit cards are for factory test purposes only, and should not be changed.

S2

S1

*

FACEPLATE

494-12966b

*

SWITCH S1 ONLY APPEARS ON THE MCMP CIRCUIT CARDS.

(MUST BE IN

THE ON POSITION)

(MUST BE IN

THE ON POSITION)

REAR

Figure 1. Modular TDM or MCMP Circuit Card Hardware Switch Locations

REMOVING THE INSTALLED MODULAR 3611 DSU
FROM THE CARRIER

To remove an installed Modular 3611 DSU, perform the following steps:

1. Use a Phillips screwdriver to loosen the screw holding the circuit pack lock on the Modular 3611 DSU,

and rotate the lock to the open position (Figure 2).

Summary of Contents for COMSPHERE 3611

Page 1: ...astic snaplock posts Eight Phillips head screws with captive lock washers Eight flat washers If any items are not present contact your sales representative A connector module which is supplied with each modular TDM or MCMP card has six ports labeled Port 1 through Port 6 When the connector module is installed in a COMSPHERE 3000 Series Carrier you can remove the modular DSU with TDM or MCMP option...

Page 2: ...rvice representative HARDWARE SWITCHES Switches on the TDM and MCMP circuit cards are for factory test purposes only and should not be changed S2 S1 FACEPLATE 494 12966b SWITCH S1 ONLY APPEARS ON THE MCMP CIRCUIT CARDS MUST BE IN THE ON POSITION MUST BE IN THE ON POSITION REAR Figure 1 Modular TDM or MCMP Circuit Card Hardware Switch Locations REMOVING THE INSTALLED MODULAR 3611 DSU FROM THE CARRI...

Page 3: ...ooves on the carrier s backplane Note that the connector module occupies two slot positions Make sure the connector module uses the same slot positions intended for the modular DSU TDM or modular DSU MCMP circuit cards 2 Loosely fasten the screws attached to the connector module allowing for slight adjustment that may be needed when installing the modular DSU TDM or modular DSU MCMP circuit cards ...

Page 4: ...ting holes in the modular TDM or modular MCMP Make sure that the double ended pin header is properly aligned Then snap the snaplock posts into the modular TDM or modular MCMP 7 Use the remaining four Phillips head screws and flat washers to secure the standoff posts to the modular TDM or modular MCMP 8 At the front of the carrier make sure that both the top and bottom edges of the modular DSU and ...

Page 5: ...tests the LCD momentarily displays messages indicating that each device DSU MUX and DBM if installed has passed the power up test Reinstall the factory configuration options use the FacC configuration for a control or FacT for a tributary 12 Perform a DSU Device Test from the SDCP to ensure that the modular DSU TDM combination is functioning properly If the test fails call your service representat...

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