IBM 1 Series - Digital and Ready Output Specifications; Integrated Digital I;O Physical Characteristics; Signal Pin Assignments

Digital and ‘Ready’ Output Specifications
Output Levels
Response Time
Each DO point and the ‘ready’ output meet the following specifications
into a resistive load:
Writing a logical 1 causes the output transistor to turn on. If a logical 0 is
written, the output transistor turns off. When the transistor is on, the
output is considered active.
Voltage output:
1. With user source:
Off state: +52.8 Vdc, maximum
On state: +0.8 Vdc, maximum
2. Without user source:
Off state: +5.5 Vdc at 0.0 mA source, maximum;
+2.4 Vdc at 1.0 mA source, minimum
On state: +0.8 Vdc, maximum
Current input:
On state: 100 mA, maximum, per point with user
source
Off state: 500 wa, maximum, per point
at +52.8 Vdc user source
Digital outputs meet and maintain specifications within 2 microseconds
after the Write DO command is issued to the channel. ‘Ready’ output lags
the digital outputs by a minimum of 500 nanoseconds and a maximum of 1
microsecond.
Integrated Digital I/O Physical Characteristics
Signal Pin Assignments
Figure 5-6 shows the location of the top-card connectors (TCCs) on the
integrated digital I/O feature card and the pin-numbering scheme. Figures
5-7 through 5-9 list the pin assignments for each of the connectors.
Integrated Digital Input/Output Feature 5-9