Equipment description
Page 27 of 80
Meridian Data Services
Description
Table 1
ADM controls and indicators
Controls and indicators
Definition
DATA key
Data DN key—used for originating and answering data calls
Lamp
Data DN lamp—indicates the call state of DDN:
ON—active call
OFF—idle
WINK—incoming call
MODEM CONTROL key
Used during call setup to a remote device
Lamp
Indicates MODEM CONTROL key status:
ON—modem in use
OFF—no modem in use
WINK—modem reserved
DATA SHIFT key
Used to shift companion SL-1 telephone from voice mode to
data mode; feature-key activations made on an SL-1
telephone during data mode then relates to the DDN
Lamp
Indicates the activation of DATA SHIFT key and operating
mode of SL-1 telephone:
ON—SL-1 set in data mode
OFF—SL-1 set in voice mode
RESET
Located on the rear of vintage B and later ADM—used to
effect initialization
CONNECT lamp
Indicates if a connection is established with a called ADM:
ON—connection established
OFF—no connection
RECEIVE lamp
Indicates if the ADM is receiving data from the called facility:
ON—ADM receiving data (flashes at data rate)
OFF—ADM not receiving data
SEND lamp
Indicates if the ADM is transmitting data to the called facility:
ON—ADM sending data (flashes at data rate)
OFF—ADM not sending data
POWER lamp
Indicates if local power is being supplied to the ADM:
ON—power up
OFF—power down
