CTI Products MCN RCD System Planner - Manual (Page 17)

Section 3 System Components and Specifications
MCN Comparator Display System Planner Page 13
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FORCE VOTE and DISABLE switch functions are controlled with either a mouse or
keyboard.
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Allows logging (to the screen and/or to a disk file) of receivers that fail or become
disabled. Logging may be enabled or disabled by the operator.
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Modem support allows remote monitoring and control.
Because the module can be used with modems for remote operation, a technician no longer has to
travel to the comparator site to diagnose system problems since he can monitor and control the
comparator from a properly equipped PC in their shop.
PC Connector 9 pin D-SUB, female, DCE
Baud Rates Supported 9600, 14.4K, 19.2K, 38.4K (38.4K Default)
Table 4 - HIB Module Specifications
3.6 Input/Output Interface Module (IIB)
The IIB provides discrete, parallel Input/Output points for monitoring and control of comparators. IIB
outputs can be connected to LEDs for viewing comparator status and inputs can be connected to
switches for control of comparator functions. Features of the IIB include:
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Support for up to 8 receivers.
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Status Outputs for each receiver which includes VOTE, RECEIVE, DISABLE, and FAIL.
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Control Inputs for each receiver include FORCE VOTE and DISABLE.
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Link Fail output which indicates a failed serial link with the ASTROTAC comparator.
This output takes up one receiver output.
Number of Receivers Supported 8 (Link Fail feature disabled)
7 (Link Fail feature enabled)
Open Circuit Voltage (all I/O pins)
jumper E1B removed
jumper E1B installed
+13.8 Vdc nominal (Standard)
+5 Vdc nominal (Logic Levels)
Inputs per Receiver
active low, pull-up to +5 or +13.8 Vdc Force Vote, Disable
Input Voltage (Input and In/Out pins) -0.6 to 30 Vdc (max.)
Input Current (Input and In/Out pins):
jumper E1B removed (Vin = 0 Vdc)
jumper E1B installed (Vin = 0 Vdc)
-720 µA max. (source)
-270 µA max. (source)
Outputs per Receiver (active low) Vote, Receive, Disable, Fail
Output Saturation Voltage (Outputs and In/Out
pins) with Output Current = 100 mA 550 mV
Output Pin Current (Outputs and In/Out pins) 150 mA max. per pin (sink)
100 mA max. per pin if all outputs are
ON.
Input/Output Connection 50 pin Telco style
Table 5 - IIB Module Specifications