Specifications

Chapter 3 Operation Installation and Operation Manual
3-2 Controls and Indicators ASMi-31 Ver. 3.0
Figure 3-2. ASMi-31/S Front Panel
Table 3-1. ASMi-31 Front Panel Controls and Indicators
Name Type Function
PWR Green LED On – Power is on.
RTS Yellow LED On – The DTE activates Request To Send.
TD Yellow LED On – Steady SPACE is being transmitted.
Blinks – Data is being transmitted.
RD Yellow LED On – Steady SPACE is being received.
Blinks – Data is being received.
DCD Yellow LED On – A valid receive signal is present.
TST Red LED On – ASMi-31 is in any of the two loopback modes, or when a BER tseting
is in progress.
ALM Red LED On – A new alarm is detected in the alarm buffer
SYNC Green/red LED
On (red) – The local modem’s data link is not synchronized with the
remote modem.
On (green) – The modem’s data link is synchronized with the remote
modem.
LCD Liquid crystal
display
Displays messages and status information.
The display contains 2 rows of 16 characters each.
CURSOR Button Moves among the information fields on the LCD
SCROLL Button Scrolls among the field options displayed on the LCD
ENTER Button Confirms the changes made in the ASMi-31 operation
CONTROL Connector Proprietary 20-pin connector for connection of PCU to ASMi-31 slave unit
Normal Indications
Table 3-2 shows the correct status of the indicators, a few seconds after power-
up.