Eia-530 Connections; Table C-3. Eia-232-D Interface Receiver Characteristics - Motorola MVME2603-1121A Installation And Use Manual

cables are permissible provided the total load capacitance
measured at the interface point and including signal terminator
does not exceed 2500pF.

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

Input signal voltage
Input high threshold voltage
Input low threshold voltage
Input hysteresis
Input impedance (−15V < V

EIA-530 Connections

The EIA-530 interface complements the EIA-232-D interface in
function. The EIA-530 standard defines the mechanical aspects of
this interface, which is used for transmission of serial binary data,
both synchronous and asynchronous. It is adaptable to balanced
(double-ended) as well as unbalanced (single-ended) signaling and
offers the possibility of higher data rates than EIA-232-D with the
same DB25 connector.
Table C-4 lists the EIA-530 interconnections that are available at
MVME761 serial ports 3 and 4 (J7 and J8 on the board surface) when
those ports are configured via serial interface modules as EIA-530
DCE or DTE ports.
Parameter
< +15V)
in
Serial Interconnections
Value
Minimum Maximum
±25
2.25
0.75
1.0
3000 7000
C
Unit
V
V
V
V
Ω
C-5