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24-Hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600
SSDTF10xx-10x
Installation -- Continued
Set the loop-back switch
Hardware mode:
The loop-back switch is located on the front panel of the media converter and is
used for installation and network debugging procedures.
To set the switch, use a small flat-blade screwdriver or a
similar device (see the drawing to the right).
CL (Copper loop-back) Enable loop-back on the local copper interface.
-- (Center Position) Normal operation.
FL (Fiber loop-back) Enable loop-back on the local fiber interface.
Software mode:
If both media converters are under software control, the network administrator can
initiate the loop-back test function on the copper interface (local or remote) or on
the fiber interface (local or remote). These four loop-back test scenarios are
described in detail on page 14.
Set the configuration switches
The configuration switches are located on the side of the media converter and are
used to configure the media converter for various network conditions.
The switches are labeled 1 through 8 on the media converter housing top. There are
two sets (a “left, SW 2” and a “right, SW 1”) each with four switches labeled 1
through 4 (see the drawing below).
Use a small, flat-blade screwdriver or a similar device to set the recessed switches.
Transmit all ones (switches 1 & 2, left set, SW 2)
The Transmit All Ones function allows the insertion of an “all ones” pattern on the
copper and/or fiber interface when the signal detect is lost, creating an alarm
condition at the device connected to the interface.
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
5
Installation -- Continued
Switch 1, Copper -- transmit all ones
UP - Disables the transmit all ones
function on the copper interface.
DOWN - Transmits an “all ones” pattern
on the copper interface when the signal
detect on the fiber interface is lost.
Switch 2, Fiber -- transmit all ones
UP - Disables the transmit all ones function
on the fiber interface.
DOWN - Transmits an “all ones” pattern on
the fiber interface when the signal detect on
the copper interface is lost.
Select T1 configuration (switches 3 & 4, left set, SW2)
Use switches 3 and 4 to configure the media converter for T1 configuration.
Switch 3, long haul/short haul
(T1 only)
UP - Short haul.
DOWN - Long haul.
Switch 4, T1 / E1
UP - T1 configuration.
Set switches 1, 2, 3, and 4 on the right
set for the required network cable
settings (see pages 6 and 7).
Select E1 configuration (switch 4, left set, SW 2)
Use switch 4 to configure the media converter for E1 configuration.
Switch 4, T1 / E1
DOWN- E1 configuration.
The default network cable setting is 3.0 V, 120
ohm.
Switch 3 on the left set and switches 1, 2, 3, and
4 on the right set are disabled.
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