Specifications

Chapter 3. Operation ASMi-31 Installation and Operation Manual
3-2 Operating Instructions 16-03-00 15:51
Table 3-1 Front Panel Controls and Indicators (Cont.)
Name Type ITU Circuit Function
DCD Yellow LED 109 On when the local and remote modems are in sync, and the
section 6 of the internal SW6 switch is set to ON.
On when the local and remote modems are in sync, and the
section 6 of the internal SW6 switch is set to OFF, and the RTS at
the remote modem is ON.
LOS Red LED On when loss of synchronization occurs between the local and
remote modem.
ERR Red LED On when an error occurs in the configuration received from the
master unit.
TEST Red LED On when a test is active.
3.2 Operating Instructions
Turning ASMi-31
On
ASMi-31 turns on as soon as power is connected. When power is
connected, the PWR indicator lights up and remains lit as long as ASMi-31
receives power.
Normal LEDs
Indications
Check that the other front panel LEDs appear as listed in Table 3-2. This
indicates that the local and remote ASMi-31 units are operational and
passing data.
Table 3-2 ASMi-31 Controls and Indicators – Normal Operation
Name State Function
PWR On
TD On or blinking Flashing depends upon the data being transmitted.
RD Off or blinking Flashing depends upon the data being received.
RTS Lights when RTS status is On
DCD Lights when RTS is received from the remote
modem and the modems are synchronized
(DCD - OFF - switch SW6)
LOS On or blinking Blinks until synchronization between the modems
is achieved.
Constantly On when there is no synchronization.
ERR Off or blinking Blinks until synchronization between the modems
is achieved.
TEST On or blinking Blinks until synchronization between the modems
is achieved.
Constantly On while test is activated from either
local or remote unit.