B869–002 Register Output, Specifications
(Original Document)
Specification Table
The following table provides the specifications for the unit.
B869-002 Specifications
Description
TTL register output
Number of Points
8 channels, 16 data lines
Operating Voltage
5 V TTL
Number of Groups
N/A
Outputs/group
N/A
Guaranteed Min. Levels
High State > 3.5 Vdc
Low State < 0.4 Vdc while sinking 16 mA
Strobe Output Power
Two TTL loads @ 5 Vdc
Strobe Width Timing
2 ms ± 10%
Data Set-up Time
Within 180 μs after the strobe has gone active (LO), data must have stabilized on the field side inputs
Minimum Data Hold Time
100 μs must be provided by the user
Response Time
20 ms between a field data change and an I/O Comm (OURBUS) update
Power Required
+5 Vdc I/O
400 mA max.
+4.3 Vdc I/O
600 mA max.
External Power Supply
+5 Vdc may be required for pull-up Vcc
Field Device Requirements
TTL output level
Low: < 0.8 Vdc @ 1.6 mA
High: > 2.4 Vdc @ 40 μA
CMOS output level
Low: < 1.6 Vdc @ 0.3 μA
High: > 3.3 Vdc @ 0.3 μA
Terminal Connector
AS-8535-000
Reference Type
Inputs
Mapped as 32 bits input
1x
or
Mapped as 2 registers input
3x
Reference Type
Outputs
Mapped as 16 bits output
0x
or
Mapped as 1 register output
4x
Output Type
BIN/BCD
NOTE: All user field devices must have outputs that feature latched, tristate, open collector or wired or passive logic.
NOTE: The user must provide 2.2 kΩ ± 10% pull-up resistors for each strobe line.