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TC2100 DM
User's Manual
Ver. 1.6
MNL-21000-01-16
LED Functions (cont.)
OPTIC SIGNAL LEDs
Sync-A:
Indicates a valid data packet is received at "RxA" (when lit); flashes if data
packet is invalid.
Sync-B:
Indicates a valid data packet is received at "RxB" (when lit); flashes if data
packet is invalid.
MSTR:
Indicates the unit is set as Master unit (or in master mode for dual master
unit), when lit; when Off, it indicates the unit is set to Slave mode.
DRV:
Indicates the unit is in “drive” mode (when lit); when Off, it indicates the unit is in “receive” mode.
POWER & ALARM LEDs
ALARM:
When lit, the dry contact relay will be activated and the audio buzzer will sound. This LED
indicates one or more of the following fault conditions has occurred:
1. The unit lost an optic "Tx" or "Rx" signal.
2. The unit received an invalid packet.
3. The Anti-streaming timer has expired (slave only).
4. The unit is in a diagnostic (testing) mode.
PWRA:
Indicates a +12V DC power supply is connected to the power jack "A" input on the rear panel
(when lit).
PWRB:
Indicates a +12V DC power supply is connected to the power jack "B" input on the rear panel
(when lit).
Vcc:
Indicates a +5V DC operating voltage is being derived from the power supply (when lit).
External DIP Switch Functions (See Figure 12)
ESW1:
RMTLB
(Remote Loopback). Loops back the received
signal from a remote location (for diagnostic testing).
ESW2:
LOCLB
(Local Loopback). Loops back the received signal
from the local DB25 connector (for diagnostic testing).
ESW3:
SIG GEN
(Signal Generator). Generates a pulse signal that
emulates a broadcast msg (for diagnostic testing).
ESW4:
DIS ALM
(Disable Alarm). When this switch is in the down
(On) position, the audio alarm buzzer and dry contact relay are
disabled.
Internal DIP Switch (SW1) Functions
1
2
3
4
ON
