1D1.0006
IN8.OUT8
Mixed Vital I/O Printed Circuit Board
Notice
This module is one of a series of modules that describe the
components of the MICROLOK II system.
Rev. 1, April 2010
SM6800B
1-1
IN8.OUT8 - Mixed Vital I/O PCB
Proprietary Notice
This document and its contents are the property of Ansaldo STS USA,
Inc. (formerly known as Union Switch & Signal Inc., and hereinafter
referred to as "ASTS USA"). This document is furnished to you on the
following conditions: 1.) That no proprietary or intellectual property
right or interest of ASTS USA is given or waived in supplying this
document and its contents to you; and, 2.) That this document and its
contents are not to be used or treated in any manner inconsistent with
the rights of ASTS USA, or to its detriment, and are not to be copied,
reproduced, disclosed or transferred to others, or improperly disposed
of without the prior written consent of ASTS USA.
Copyright © 2010, Ansaldo STS USA
1000 Technology Drive, Pittsburgh, PA USA 15219-3120
645 Russell Street, Batesburg, SC 29006
www.ansaldo-sts.com/usa
All rights reserved.
Revision History
REV.
1
1-2
ISSUE DATE
April 2010
REVISION DESCRIPTION
Initial release
SM6800B
1D1.0006, Rev. 1, April 2010
IN8.OUT8 - Mixed Vital I/O PCB
1.
IN8.OUT8 - MIXED VITAL I/O PCB
IN8.OUT8 - Mixed Vital I/O – 8 Vital Isolated Inputs, 8 Vital Non-Isolated Outputs –
N17061601, N17061602, N17061603, 17066701, 17066702
1
OUT 1
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
OUT 8
2
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
IN 8
IN8
.OUT8
Figure 1-1. IN8.OUT8 Mixed Vital I/O PCB Front Panel
1D1.0006, Rev. 1, April 2010
SM6800B
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IN8.OUT8 - Mixed Vital I/O PCB
1.1. Operation
The IN8.OUT8 Mixed Vital I/O board provides eight isolated vital inputs and eight non-isolated
vital outputs.
The eight isolated vital input circuits, which interface with external devices, are isolated from all
other inputs, the motherboard I/O Bus, cardfile chassis, and system battery to a minimum of
2000Vrms isolation. All eight non-isolated outputs on the PCB share a common floating N12
(isolated from system ground).
Each input circuit senses the voltage (vital level detector) applied to it, translates that voltage into
a specific "On" or "Off" state, and then makes that state available to the cardfile CPU via the
cardfile motherboard I/O data bus. When an input is detected and the CPU system diagnostics
are valid, the system software turns the corresponding LED input indicator "On." Each circuit is
vital in the sense that it will not falsely indicate an "On" state to the CPU. The indicators on the
front panel are described in Table 1-1.
Table 1-1.
Ref
Figure 1-1
Label
IN8.OUT8 PCB Indicators
Device
Purpose
1
OUT1 OUT8
LEDs
(Yellow )
Monitor state of vital outputs 1 through 8. When lit,
indicates respective output is turned “On".
2
IN1 - IN8
LEDs
(Green)
Monitor state of vital inputs 1 through 8. When lit,
indicates respective input is turned “On".
Inputs are only accepted as "On" when the positive voltage value is within the voltage range
specification of the board.
The eight non-isolated vital output circuits, which interface with external devices, are controlled
by "high side" software-controlled switches (FET). See Figure 1-2 for a block diagram of the
output. The FETs are used to connect battery (+) to the outputs. Loads are connected from the
outputs to battery (–). All eight outputs share a common N12.
Two styles of this PCB exist (all information applies to both PCB styles unless noted otherwise):
•
N170616xx PCBs (See Figure 1-2) protect each output using a PolySwitch, which acts like a
circuit breaker. When the over-current trip point is reached (about 0.75A), the PolySwitch
switches to a high impedance. The PolySwitch resets to its normal low impedance when the
additional load or short is removed.
•
N170667xx PCBs (See Figure 1-3) protect each output using a fuse. The fuse is mounted to
the PCB (SMT) and is not user-serviceable.
1-4
SM6800B
1D1.0006, Rev. 1, April 2010
IN8.OUT8 - Mixed Vital I/O PCB
Cardfile
Internal
VCOR
Relay
IN8.OUT8 PCB (12V)
House B12
Internal
Cardfile
Wiring
-
+
Controlled
External
Relay
Output
“X”
Internal
Cardfile
Wiring
Polyswitch-Protected
Output “Contact”
High-Side Switch
OUTconnection on
J4, 6, 8, 10, or 12
Analog
Ground
CPU Control
Figure 1-2. Typical IN8.OUT8 Vital Output (N170616xx) Block Diagram
(Example Only)
Cardfile
Internal
VCOR
Relay
IN8.OUT8 PCB (12V)
House B12
Internal
Cardfile
Wiring
-
+
Controlled
External
Relay
Internal
Cardfile
Wiring
OUTconnection on
J4, 6, 8, 10, or 12
Output
“X”
Fuse Protected
Output “Contact”
High-Side Switch
1D1.0025.2501.00
Analog
Ground
CPU Control
Figure 1-3. Typical IN8.OUT8 Vital Output (N170667xx) Block Diagram
(Example Only)
1D1.0006, Rev. 1, April 2010
SM6800B
1-5
IN8.OUT8 - Mixed Vital I/O PCB
A short to battery (–) will trip the PolySwitch and cause the VCOR relay to drop, but will not
cause any damage. A short to battery (+) will not cause any damage, but because this condition is
equivalent to a false output, the MICROLOK II CPU will cause the VCOR relay to drop.
Multiple connecting points are available for both the battery (+) and (–) connections. The
connector pins can each handle up to three amps of load current.
WARNING
When a Microlok II Vital Output PCB (part number N170605XX)
is being used in an application such that its unintended transition to
a permissive state for one second or less can directly result in an
unsafe condition (i.e., movement of a switch), one of the following
actions must be taken:
1)
The circuit should be driven by two independent Microlok
II outputs arranged in a series configuration so that
energization of the overall circuit cannot occur unless the
two Microlok II outputs are simultaneously energized. The
two outputs should be driven from two separate Vital
Output boards.
2)
If a single Microlok II output must be used in such a
circuit, external vital delay devices (i.e. slow pick relays)
must be used to introduce a delay greater than one second
to the circuit output.
1.2. User Interface
The IN8.OUT8 PCB does not contain any field-adjustable switches or jumpers. Table 1-1 lists
the user indications on the IN8.OUT8 PCB.
1.3. PCB Specifications
The input and output specifications for the IN8.OUT8 PCB are shown in Table 1-2 and Table
1-3, respectively.
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SM6800B
1D1.0006, Rev. 1, April 2010
IN8.OUT8 - Mixed Vital I/O PCB
Table 1-2.
IN8.OUT8 PCB Output Specifications
ASTS USA
PART NO.
VOLTAGE VBATT
RANGE
LOAD
RESISTANCE
RANGE
MAX. OFF
VOLTAGE
MIN. ON
VOLTAGE
N17061601
12V
50 Ω - ∞
0.75V
VBATT – 1V
N17061602
24V
100 Ω - ∞
1.5V
VBATT – 1V
N17061603
24V
100 Ω - ∞
1.5V
VBATT – 1V
N17066701
12V
50 Ω - ∞
0.75V
VBATT – 1V
N17066702
24V
100 Ω - ∞
1.5V
VBATT – 1V
Table 1-3.
IN8.OUT8 PCB Input Specifications
ASTS USA
PART NO.
VOLTAGE VBATT
RANGE
MIN. VOLTAGE
TO ENSURE ON
STATE
VOLTAGE TO
ENSURE OFF
STATE
MAX.
SUSTAINED
INPUT VOLTAGE
N17061601
12V
9.5V
7.0V OR LESS
34V
N17061602
24V
16.0V
12.0V OR LESS
62V
N17061603
50V
35.0V
15.0V
72V
N17066701
12V
9.5V
7.0V OR LESS
34V
N17066702
24V
16.0V
12.0V OR LESS
62V
1.4. PCB Addressing and Communication
Communication between the PCB and the cardfile CPU begins with the board address jumpers,
located on the PCB top 48-pin connector. These jumpers identify the PCB to the CPU and permit
communication. Jumper settings are determined by the application compiler, and are available in
the list file (*.mll) automatically generated during the application compile process.
1.5. I/O Interface
Field wiring is done via the top board connector. Each of the eight isolated individual vital inputs
has two input connections (+, –) for field equipment.
Inputs can be wired in a BiPolar configuration. Note that in Figure 1-5 input 7 is "On" and input
8 is “Off" for the polarity indicated. For the reverse polarity, input 7 is "Off" and input 8 is "On".
A typical vital BiPolar input block diagram is shown in Figure 1-4.
1D1.0006, Rev. 1, April 2010
SM6800B
1-7
IN8.OUT8 - Mixed Vital I/O PCB
Represents Bipolar Circuit
B
Standard Vital Input PCB (12V)
Output
N
No
Output
Figure 1-4. Typical Vital BiPolar Input Block Diagram
Refer to Figure 1-5 for PCB pin-out information and Figure 1-6 for PCB top connector pin
configuration.
PCB 48-pin top connectors are typically wired by ASTS USA per project specifications. A
typical connector/cable assembly for the IN8.OUT8 PCB is ASTS USA Part Number
N50739601 (20 foot), which provides wiring for the eight inputs and outputs (See Figure 1-6).
1-8
SM6800B
1D1.0006, Rev. 1, April 2010
IN8.OUT8 - Mixed Vital I/O PCB
Pin No.
48-pin Connector
SEL+
SW1
E32 White
E30 Brown
SW2
C30 Red
A30 Orange
E28 Yellow
C28 Green
SW3
SW4
SW5
SW6
To Board
Addressing
Circuits
A28 Blue
Address
Select
PCB
GND
A26 Black
E2
E4
C2
C4
A2
A4
E6
E8
Bi-polar Input Detection
C6
C8
For Indicated Polarity,
Input 7 ON, Input 8 OFF
A6
A8
For Reverse Polarity,
Input 7 OFF, Input 8 ON
E12
E14
+ -
C12
C14
VCOR*
+
Input #1
+
Input #2
+
Input #3
+
Input #4
+
Input #5
+
Input #6
+
Input #7
+
Input #8
-
IN8.OUT8
Mixed
Vital I/O PCB
N17061601
N17061602
A24
B12
C24
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
Output #1
C18
Output #2
A18
Output #3
E20
Output #4
C20
Output #5
A20
Output #6
E22
Output #7
C22
Output #8
E24
E26
N12
1D1.0006.0601.00
E18
*Even if only inputs are used on this board, B12 must be connected to A24 and/or C24.
This may or may not be through the VCOR.
Figure 1-5. Mixed Vital I/O PCB - Basic Interface Wiring
1D1.0006, Rev. 1, April 2010
SM6800B
1-9
IN8.OUT8 - Mixed Vital I/O PCB
PIN A2
ac e
PIN E32
RUBBER BOOT NOT SHOWN
PART #
TAG TO BE 3" FROM HEAD
3"
2"
E2
E4
C2
C4
A2
A4
E6
E8
C6
C8
A6
A8
E12
E14
C12
C14
E18
C18
A18
E20
C20
A20
E22
C22
C24
A24
E26
BK
W
BR
W
R
W
O
W
Y
W
G
W
BU
W
V
W
S
OPEN END
48 PIN CONNECTOR
20'
E32
W
SW1
BR
E30
C30 RED
A30
E28
C28
A28
A26
1
0
SW2
1
0
SW3
O
1
Y
1
GRN
1
BU
1
0
SW4
0
SW5
0
SW6
0
BLK
W/BK
W/BR
W/R
W/O
W/Y
W/G
W/BU
R
W
E24
Figure 1-6. Typical Input Top Connector
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SM6800B
1D1.0006, Rev. 1, April 2010
IN8.OUT8 - Mixed Vital I/O PCB
1.6. PCB Keying
Each type of ASTS USA PCB has a different combination of six keying fingers.
Keying fingers are designated by ASTS USA. Their purpose is to ensure that the PCB is being
inserted into its proper cardfile slot. Therefore keying tabs must not be removed or altered by the
user. Table 1-4 lists the keying for the OS Track Circuit PCB.
Table 1-4.
PRINTED CIRCUIT
BOARD
PART NO.
Mixed vital input (12V)
Keying for IN8.OUT8 PCB
KEYING PLUG LOCATION
1
2
3
4
5
6
7
N17061601
√
√
Mixed vital input (24V)
N17061602
√
√
Mixed vital input (50V)
N17061603
√
√
Mixed vital input (12V)
N17066701
√
√
√
√
Mixed vital input (24V)
N17066702
√
√
√
√
√
8
9
√
√
√
√
10
11
√
√
√
√
12
√
√
√
√
√
√
√
The "√" in Table 1-4 indicates a keying tab removed on the PCB connector and a keying plug
installed on the motherboard connector. Correspondingly, no entry in the table indicates a keying
tab not removed on the PCB connector and no keying plug installed on the motherboard
connector (See Figure 1-7).
WARNING
Correct keying of the Vital Output PCBs is critical for safe
operation if the outputs are used to drive switch machines. Secure
the motherboard keying plugs with Loctite® or similar to ensure
that once the plugs are initially set, they cannot be changed or fall
out.
1D1.0006, Rev. 1, April 2010
SM6800B
1-11
IN8.OUT8 - Mixed Vital I/O PCB
96-pin (Female)
Connector on
Cardfile
Motherboard
Keying
Plug
No.
96-pin (Male)
Connector on PCB
Insert Keying Plug
J709146-0473
1
„„„
„„„
„„„
2
„„„
„„„
„„„
3
„„„
„„„
4
„„„
„„„
„„„
5
„„„
„„„
„„„
Printed
Circuit
Board
6
„„„
„„„
„„„
7
„„„
„„„
„„„
8
„„„
„„„
„„„
9
„„„
„„„
10
„„„
„„„
„„„
11
„„„
„„„
„„„
12
„„„
Adjacent
Keying Plug
Connector
(Male)
Adjacent
Keying Plug
Connector
(Female)
PCB Keying
Tabs Set at
Factory
Figure 1-7. Typical Keying Tab and Pin Arrangement
1.7. System Cardfiles
The systems that support the use of IN8.OUT8 PCBs are listed in Table 1-5.
Table 1-5.
IN8.OUT8 PCB System Applications
ASTS
USA
PART NO.
MICROLOK II
MICROLOK II HB
END
POINT
LED12
INTERMEDIATE
N17061601
√
√
√
√
N17061602
√
√
N17061603
√
√
N17066701
√
√
√
√
N17066702
√
√
APPLICABLE CARDFILES
I-LOK
GENISYS II
1.8. Configuration Options
This board is defined under the Interface Section – LOCAL Sub-Section of the application
program.
The board may be Enabled/Disabled via the MICROLOK II Development System. This is the only
software interface available for this board.
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SM6800B
1D1.0006, Rev. 1, April 2010
IN8.OUT8 - Mixed Vital I/O PCB
End of Module
1D1.0006, Rev. 1, April 2010
SM6800B
1-13