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Options
The FT1 DP is provisionable via the craft interface on
the Total Access 1500 SCU or by circuit board DIP
switches. Table 1 and Table 2 show the option
settings and their defaults. Control Port Operation is
described in Section 6 of this practice.
Function
Line Code
AMI ................................................................................ Selects AMI line code .................................................................. OFF
B8ZS* ............................................................................. Selects B8ZS line code ................................................................ ON
Framing
SF .................................................................................... Selects SF framing ....................................................................... OFF
ESF* ............................................................................... Selects ESF framing .................................................................... ON
Latching Loopback
Enabled* ......................................................................... Enables latching loopbacks .......................................................... ON
Disabled .......................................................................... Disables latching loopbacks ......................................................... OFF
Latching Time Out
20 minutes* ..................................................................... Enables 20-minute loopback time out .......................................... ON
None ................................................................................ Disables loopback time out .......................................................... OFF
*Default
61180405L1-5A
DIP Switch vs. Interface Options
Circuit board DIP switches SW1, SW2, and SW3
select option configurations identical to interface
selected options. DIP switch options are set prior to
card insertion and can be changed as often as
necessary. However, once the card in a particular slot
is provisioned via the interface, that configuration
becomes the bank default for that slot. From that
point on the interface is the only way to change
options as card DIP switches will be ignored.
Additionally, the bank default for that slot will
automatically configure a replacement card regardless
of DIP switch selections when inserted. If a card is
inserted into a slot that has never been provisioned via
the interface, the DIP switches can be used even if
that card was removed from a bank default slot.
Table 1. Option Settings
Description
Section 61180405L1-5, Issue 1
SW1
SW1-1
SW1-2
SW1-3
SW1-4
3
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