Page 504 of 906 NT7D16 Data Access card
553-3001-211 Standard 3.00 August 2005
Power supply
Be sure that all power requirements are met before installing the DAC.
Operation may be affected by improper power and environmental conditions.

EIA signals supported

The DAC supports a subset of the standard signals. Only 8 leads can be
brought through the backplane connector for each port, totaling 48 leads for
each card slot. Table 165 lists the EIA signals supported on this card.
Table 165
EIA signals supported (RS-232-C)
EIA
DB-25
Pin
Signal
abbreviation Description
DCE
mode
DTE
mode
BA 2TD Transmitted Data In Out
BB 3RD Received Data Out In
CB 5CTS Clear To Send Out In
CC 6DSR Data Set Ready Out In
AB 7GND Signal Ground — —
CF 8DCD Carrier Detect Out In
CD 20 DTR Data Terminal Ready In Out
CE 22 RI Ring Indicator Out In
Note: RS-422 leads supported are: Tx (transmit) and Rx (receive).