Interface Characteristics; Table C-2. Eia-232-D Interface Transmitter Characteristics - Motorola MVME2603-1121A Installation And Use Manual

EIA-232-D Connections
C

Interface Characteristics

Table C-2. EIA-232-D Interface Transmitter Characteristics

Output voltage (with load resistance of 3000Ω
to 7000Ω)
Open circuit output voltage
Short circuit output current (to ground or any
other interconnection cable conductor)
Power-off output resistance
Output transition time (for a transition region
of -3V to +3V and with total load capacitance,
including connection cable, of less than
2500pF)
Open circuit slew rate
C-4
Notes 1. A high EIA-232-D signal level is +3 to +15 volts. A low
level is −3 to −15 volts. Connecting units in parallel may
produce out-of-range voltages and is contrary to
specifications.
2. The EIA-232-D interface is intended to connect a terminal
to a modem. When computers are connected without
modems, one computer must be configured as a modem
and the other as a terminal.
The EIA-232-D interface standard specifies all parameters for serial
binary data interchange between DTE and DCE devices using
unbalanced lines. EIA-232-D transmitter and receiver parameters
applicable to the MVME2603/2604 are listed in the following
tables.
Parameter
The MVME2603/2604 conforms to EIA-232-D specifications. Note
that although the EIA-232-D standard recommends the use of short
interconnection cables not more than 50 feet (15m) in length, longer
Value
Minimum Maximum
±8.5
±12
±100
300
2
30
Unit
V
V
mA
W
µs
V/µs