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LED Functions (cont.)
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.
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).
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
OPTIC SIGNAL LEDs
POWER & ALARM LEDs
Loops back the received
- 12 -
TC2100 DM
User's Manual
Ver. 1.6
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MNL-21000-01-16
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