Interface Characteristics; Table B-2. Eia-232-D Interface Transmitter Characteristics; Table B-3. Eia-232-D Interface Receiver Characteristics - Motorola MVME2600 series Installation And Use Manual

Interface Characteristics

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.

Table B-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
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 (15 m) in length, longer
cables are permissible provided the total load capacitance measured at the
interface point and including signal terminator does not exceed 2500pF.

Table B-3. EIA-232-D Interface Receiver Characteristics

Input signal voltage
Input high threshold voltage
Input low threshold voltage
Input hysteresis
Input impedance (−15V < V
http://www.motorola.com/computer/literature
Parameter
Parameter
< +15V)
in
EIA-232-D Connections
Value
Minimum Maximum
±8.5
±12
±100
300
2
30
Value
Minimum Maximum
±25
2.25
0.75
1.0
3000 7000
Unit
V
V
mA
W
µs
V/µs
Unit
V
V
V
V
Ω
B-5
B