ICP Electronics PX-14S3 User manual

ICP Electronics Inc.
PX-14S3
ISA/PCI Bridge Backplane
User’s Manual
@Copyright 2000
All Rights Reserved.
Manual first edition January 2000
The information in this document is subject to change without prior notice in order to
improve reliability, design and function and does not represent a commitment on the
part of the manufacture.

1PX-14S3 User’s Manual
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Introduction … … … … … … … … … … … … … … … … … … … … … … … … … … … … … 2
Product Features … … … … … … … ...… … … … … … … … … … … … … … … … … … … … 2
Routing List … … … … … … … … … … … … … … ...…… … … … … … … … … … … … . … 3
Board Drawing … … … … … … … … … … … … ...…… … … … … … … … … … … … … … ..3
Connectors … … … … … … … … … … … … ...… … … … … … … … … … … … … … … 4
Pin Assignment … … … … … … … … … … … … … … … … … … … … … … … … … … … … .4
Installation Guide … … … … … … … … … ...… … … … … … … … … … … … … … … … … ..5

2PX-14S3 User’s Manual
PX-14S3 ISA/PCI Bridge Backplane
Introduction
PX-14S3 is exactly the backplane what you want, even in the future. As you know, most of the
adapters are of PCI bus, and ISA adapters are on the decrease in the market. If this problem have
bothered you for a long time, then PX-14S3 is the right answer for you. In order to solve the
problem, PX-14S3, includes 12 32-bit PCI slots (5V/3.3V) on board, gives the great flexibility for
your system’s extension. We have DC power outlet (including +5V, -5V, +12V, and -12V) on PX-
14S3 to keep system more stable. You can acquire a power supply with great stability, even as the
system work under heavy load. Besides, we also add a connector for ATX power supply to which
you can connect your SBC (SBC must have the ability to use ATX power).
Product Features
Standard
♦PCI-conforms to PICMG 2.1 specification.
♦ISA-conforms to IEEE P996 specification.
PCB
♦The Printed Circuit Boards (PCB) overall dimension is 264.2mm x 311.2mm (10.4”x 12.3”)
and total thickness is 1.6mm (4 layers).
♦Mounting holes are provided and are located to conform to the baby AT form factor. Mounting
holes are connected to Signal ground internally.
♦Operating Temperature; 0 to 60°C (32 to 140°F).
♦Storage Temperature; -20 to 85°C (-4 to 185°F).
♦Humidity; 5% to 95%, non-condensing.
♦EMI/Safety; Meets FCC, CE Class A and UL, CSA and TUV.
Connector
♦Dual slots PCI/ISA for the CPU board.
♦One ISA slot for full-size ISA board.
♦Twelve 32-bit PCI slots for full-sized boards on the Primary bus, All slots are Master/Slave
configurable by using Bus Mastering Scheme.
♦One AT standard power connector, 12 pins, 5A max, per pin for +5V, -5V, +12V, and -12V
voltages and Ground.
♦One ATX standard power connector; 20 pins, 5A max, per pin for +3.3V, +5V, +5VSB, -5V,
+12V, and -12V voltages, Ground, and power Good signal.
♦One ATX control connector to distribute signals coming from the CPU boards onto connector

3PX-14S3 User’s Manual
for soft on/off ATX power supply.
♦One DC power outlet.
♦Pairs of header for local connection of a fan power, keyboard and power LEDs.
Routing List
PCI
SLOT 1243-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9
IDSEL AD31 AD30 AD28 S_AD20 S_AD21 S_AD22 S_AD23 S_AD24 S_AD25 S_AD26 S_AD27 S_AD28
INTA B C A D A B C D A B C D
INTB CDBAB C D A B C D A
INTC D A C B C D A B C D A B
INTD ABDCD A BCD A B C
Board Drawing

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Connectors CONNECTOR DESCRIPTION
ISA1/PCI1 & ISA3/PCI2 PICMG connectors
PCI3-PCI14 32-BIT PCI BUS connectors
ISA2 16-BIT ISA BUS connectors
PW1 P8/P9 power connector
PW2 ATX power connector
PW4 P10 power connector
KB1 AT keyboard connector
CN1 DC power outlet
CN2 ATX P/S control connector
CN3,CN5 Fan connector
CN4 Power good signal output
CN6,CN7 Extend keyboard connector
Pin Assignment
ATX(PW2)
PIN NAME PIN NAME
1+3.3V 2+3.3V
3+3.3V 4-12V
5GND 6GND
7+5V 8PS_ON
9GND 10 GND
11 +5V 12 GND
13 GND 14 GND
15 PWR OK 16 -5V
17 STB5V 18 +5V
19 +12V 20 +5V
P8/P9(PW1)
PIN NAME
1PWR OK
2+5V
3+12V
4-12V
5GND
6GND
7GND
8GND
9-5V
10 +5V
11 +5V
12 +5V
Power Extension(CN1)
PIN NAME
1+5V
2-5V
3-12V
4+12V
5GND
ATX control connector(CN2)
PIN NAME
1STB5V
2PS_ON
3GND
Power Good output(CN4)
PIN NAME
1Power Good
2GND
K/B connector(KB1)
PIN NAME
1K/B CLK
2K/B DATA
3NC
4GND
5+5V
P10(PW4)
PIN NAME
1+5V
2+5V
3+5V
4GND
5GND
6GND
Fan connector(CN3,CN5)
PIN NAME
1NC
2+12V
3GND
Ext. K/B(CN6,CN7)
PIN NAME
1K/B CLK
2K/B DATA
3NC
4GND
5+5V

5PX-14S3 User’s Manual
Installation Guide
ØChassis
Make sure the copper lifting stands are placed below all the mounting holes of your backplane.
ØSBC
Apply only one full-sized SBC over PICMG slot or half-sized SBC over ISA slot.
Apply your ISA/PCI cards over ISA/PCI slot (Image 1).
ØPower Supply
1.If you use AT power supply, attach the P8/P9 connector to PW1 (Image. 2).
2.If you use ATX power supply, attach the 20-pin ATX power connector to PW2 (Image. 3).
Besides, you need to apply one 3-pin ATX power control cable between your SBC and backplane
over the 3-pin header CN2. (A toggle switch is required over your SBC for this application.
Image. 4).
3.If you use ATX power supply, you may also plug a switch into pin-2 and pin-3 of CN2. In this
application, the 3-pin ATX power control cable is not required, and your ATX power supply will
then act as AT power supply (Image. 5).
Image 1 Image 2
Image 4
Image 3

6PX-14S3 User’s Manual
ØKeyboard
1.If you use AT keyboard, attach a 5-pin keyboard connector cable between your SBC and
backplane over the 5-pin shrouded header CN6. Also connect another similar 5-pin keyboard
cable on chassis onto CN7. This will then enable the chassis keyboard DIN connector.(Image 6)
2.If you use PS/2 keyboard, simply attach them to the PS/2 connector on SBC.(Image 7)
ØFan
CN3 and CN5 are fan connectors. Please refer to the pin assignment table for proper connection.
ØAdditional Power Connectors
PW4 are additional power connectors used to draw more power and balanced the power
distribution for full loading system. Users need to make a P8-like power connector with three +5V
(P10) pins and three ground pins. For pin assignment, please refer to pin assignment section (Image
2)
Image 5 Image 6
Image 7