4(E)
Location and Function of Parts
PC Interface Unit
1
PC connector
2
TERMINAL connector
3
EDITOR connector
4
SWITCHER connector
5
DMEs connector
6
AUX1 to AUX3 connectors
7
GPI connector
1
PC connector (50-pin, half-pitch)
Connect to the 50-pin connector on the CPU-252
board installed in the computer, using the supplied 50-
pin remote control cable.
Number and function
5
Switch S2
Controls firmware operation.
6
Test pin TP11
Functions like Test pin TP10
8
, but at twice the
period.
7
Test pin TP12
Functions like Test pin TP10
8
, but at fourth the
period.
8
Test pin TP10
Indicates whether a field of the external reference
signal is odd (1) or even (0).
ON
OFF
1: Selects whether or not
to activate the program
loader upon reset
activate
do not activate
(normal setting)
2: Selects the serial port
to be used for loading
Connector CN5
(normal setting)
Connector CN3
3: Selects the serial port
communication speed
19200 bps
(normal setting)
9600 bps
4 to 7: unused
—
8: Selects whether or not
to activate the self
diagnostic function upon
reset
activate
do not activate
(normal setting)
9
Jumper COP1
Used to set the IRQ number. This setting may differ
from PC to PC.
0
Indicators D14 to D16
Shows information about the processor’s
communication port outputs.
D14: blinks when receiving a signal from a switcher
D15: blinks when receiving a signal from a DME
D16: blinks when a communications error occurs
with either a switcher or DME
!¡
Termination switch
Set to ON to terminate Connector CN8
!™
.
!™
Connector CN8 (50-pin, half-pitch)
Connect to the PC connector on the PC Interface Unit,
using the supplied 50-pin remote control cable.
!£
Connector CN4 (BNC type)
Reference signal input.
2
TERMINAL connector (D-sub 9-pin, RS-232C)
Unused.
3
EDITOR connector (D-sub 9-pin, RS-422A)
Unused.
Summary of Contents for BKDS-2530
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