TC Communications TC1903, User Manual

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MNL-19030-01-19
1. Apply the power by plugging the power plug into any power jack on the rear panel. The power source
can be from a power adapter or from a power card (installed either on the left or right side of the rack).
2. The "PWR A" or "PWR B" LED on the front panel of the card will light according to which power jack
(A or B) is connected. Both LEDs will light when power redundancy is utilized.
3. The "Vcc" LED should be lit, indicating an adequate operating voltage is being derived from the power
source.
4. Make sure front panel DIP switches are set correctly according to your application, refer to page 6.
5. Connect the units according to your setup, refer to page 9. If extending a phone line, make sure the RJ-
11 cable is connected correctly on the RJ-11 connector on the rear panel for FXO/FXS. If using a "hot
link" setup, both units should be factory set for "FXS."
6. Once fiber optical cable(s) are connected, communication is setup between TC1903 peers, the alarm
"ALM" LED will be Off, the green "SYNC," and "RSYNC" LEDs should be solidly lit to indicate good
optic signal is received.
7. Lift up local phone's handset and observe the remote TC1903's "RING" LEDs start to flash.
8. Once the remote phone rings, the remote user can answer the call by picking up the remote handset.
9. When both parties communicate, the front panel "VOLUME" LEDs should indicate the transmit and
receive volume.
10 . When one of the parties replace the handset to hook to terminate the communication, both units will turn
into "idle" state.
Note: The TC1903 FXS configured unit(s) will ring the phone channel during initialization, and the
phone set connected on the FXS channel should ring 10 seconds after power up.
Lightning/Surge Warning Note:
If copper cable(s) connected to TC1903 unit(s) are located outside buildings or enclosures (even at
minimal distances), TC1903 units may be damaged by lightning and/or electrical power surges.
Adding protective devices (surge suppressors/lighting protectors) to each copper cable that is exposed
to potential lightning strikes or power surges is highly recommended. Please be aware that adding such
protective devices can't guarantee 100 percent protection for connected electronic equipment. You
should contact a professional lightning/surge protection consultant for specific questions regarding your
application.