Opening the dsu – Paradyne COMSPHERE 3611 User Manual
Page 11
COMSPHERE 3600 Series Data Service Units
2-2
September 1996
3610-A2-GB48-50
TDM/Flex and MCMP/Flex models are available with
two or six ports. When your firmware version is 6.33 or
greater, each port can be set individually for either
EIA-232 or V.35 using the front panel, an async terminal,
or an NMS.
Based on your model, you may need to perform one of
following procedures. Use ID from the Status branch to
obtain the firmware version.
If your
model is a
6-port . . .
And the
EIA232
setting . . .
Then . . .
TDM/Flex or
MCMP/Flex
Is correct
Go to the
Powering Up the
DSU section, page 2-4.
MCMP/Flex
with firmware
6.33 or
greater
Needs to be
changed
Go to the
Powering Up the
DSU section, page 2-4
and the
Reconfiguring
Ports section, page 2-5.
TDM/Flex or
Is correct
Go to the
Powering Up the
DSU section, page 2-4.
TDM/Flex or
MCMP/Flex
with firmware
less than
6.33
Needs to be
changed
Change the S1 switch
setting; refer to Document
No. 3610-A2-GZ51,
TDM/Flex and MCMP/Flex
Installation Instructions.
TDM/DSD
Is correct
Go to the
Powering Up the
DSU section, page 2-4.
TDM/DSD or
MCMP/DSD
Needs to be
changed
Change the option card to
set all six ports; start with
next section,
Opening the
DSU.
Opening the DSU
NOTE
If the unit is already installed,
disconnect all cables, including
the power source, before
opening the DSU.
Follow this section to change a TDM/DSD or
MCMP/DSD model from:
•
EIA-232 interface to V.35 interface, or
•
V.35 interface to EIA-232 interface
Use a small flat-head screwdriver to release the four
snap tabs holding the base in place. Remove the cover. Do
not allow any cables to pull free from the inside front
panel connectors.
496-14707-01
With TDM
or MCMP
Snap Tabs
COMSPHERE 3610