Specifications

Front Panel Controls and Indicators 3-1
Chapter 3
Operation
This chapter provides the following information for the ASM-10/8 standalone
modem:
• ASM-10/8 front-panel indicators and controls
• Operating procedures (turn-on, front-panel indications, performance
monitoring and turn-off).
Installation procedures given in Chapter 2 must be completed and checked before
attempting to operate ASM-10/8.
3.1 Front Panel Controls and Indicators
Figure 3-1 shows the ASM-10/8 front panel. Table 3-1 lists the ASM-10/8 controls
and indicators.
PWR RTS TESTTD RD
DIG ANA REM
DCD
Figure 3-1. ASM-10/8 Front Panel
Table 3-1. ASM-10/8 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 transmitted.
RD Yellow LED ON – Steady SPACE is being received.
Blinks – Data is received.
DCD Yellow LED
ON – A valid receive signal is present.
TEST Yellow LED ON – ASM-10/8 is in any of the three loopback modes, or the
PATT pushbutton is pressed.
ERR Yellow LED ON or blinks if errors are present in the test pattern.