Tenda PWRS-0026, BCKP-0029 User Manual

PWRS-0026

BCKP-0029

6U CompactPCI

Power Supply with UPS

13 Altalef St.

Yehud, Israel 56216
Tel: [phone]
Fax: [phone]

www.tenta.com

919 Kifer Road

Sunnyvale, CA 94086 USA

Tel: [phone]

Fax: [phone]

Document Revisions

Rev Comment BY Date

E0 Release - Preliminary
E0.1 Additions and corrections
E1.0 Release, Windows utility added, UPS time

defaults changed

E2.0 Update document format

DG
DG
DG

TJ

11/25/00
12/07/00
04/16/01

01/10/02

PWRS-0026 User Manual Page 2 of 19

Table of Contents

I. Ordering Information ......................................................................4

II. System Configuration.....................................................................5

III. Specifications ..............................................................................7

A. Physical Specifications....................................................................... 7

B. Environmental Specifications............................................................. 8

C. Front Panel Indicators......................................................................... 8

D. Power Specification............................................................................. 8

E. On Board Fuses................................................................................... 9

IV. Power Supply Card....................................................................10

A. Power Supply Block Diagram........................................................... 10

B. UPS Option......................................................................................... 11

C. Functionality ......................................................................................11

V. Logic Board ...................................................................................12

A. LOGIC Board Block Diagram............................................................ 13

VI. BACKUP Board..........................................................................14

A. Battery Backup Block Diagram......................................................... 15

VII. PCI Driver Operation .................................................................16

VIII. Handshake Mode Operation .....................................................17

IX. Memory Map...............................................................................18

X. Warranty.........................................................................................19

PWRS-0026 User Manual Page 3 of 19

I. Ordering Information

Part Number Description

AS00026-01 Power supply card, 130 watts, 6U, M type connector
AS00030-01 UPS logic board, 6U
AS00043-01 Power supply with UPS logic board
AS00029-01 Battery back up module, 6U

PWRS-0026 User Manual Page 4 of 19

II. System Configuration

This document describes the specifications and functionality of Tenta’s 6U
CompactPCI Power Distribution board with UPS. The power supply board
provides power signals through M-type connector to the CompactPCI
back plane. It may be used stand alone, or with the optional UPS logic
and battery backup module. The power supply board form factor, physical
dimension and BUS interface comply with CompactPCI Specification
PICMG 2.0 R2.1.

PWRS-0026 User Manual Page 5 of 19

The full system consists of three main components. The power supply
can be used stand alone, or combined with items #2 - #3 for a full UPS
system.

1) PS

Power conversion :
AC/DC: 90-132 / 180-264 VAC -> 15V

DC/DC: conversion of 15V to 5V,3.3V,±12V

2) LOGIC

Charger for Ni-Cd battery
PCI Interface
Serial Logic

3) BACKUP

Ni-Cd battery pack
Serial Interface

PWRS-0026 User Manual Page 6 of 19

III. Specifications

A. Physical Specifications

Criteria Specifications

PS and LOGIC

PCB Dimensions 233MM (9.1875”) Height X 160MM

Form Factor Plug in Euro card, 6U Height, IEEE
Connectors M-Type Connector on power board;

Front Panel 262mm Height X 50mm Width x 2mm

Weight 900g

BACKUP

PCB Dimensions 233MM (9.1875”) Height X 80MM

Form Factor Plug in Euro card, 6U Height, IEEE
Connectors Metric 2.0mm grid female connector for
Front Panel 262mm Height X 50mm Width x 2mm

Weight 800g

(6.2992”) Depth X 1.6MM (0.0629”)
Thickness

(1101.1, 101.10 and P1101.11)
metric 2.0mm grid female connector for

J1 (cPCI BUS) and J5 (signal
distribution) on logic board

Thickness, with power and status
indication LED’s

(3.1496”) Depth X 1.6MM (0.0629”)
Thickness

(1101.1, 101.10 and P1101.11)
J5 (signal distribution)
Thickness with dsub9 female

(handshake signal connector)

PWRS-0026 User Manual Page 7 of 19

B. Environmental Specifications

Criteria Specifications

Operating
temperature
Storage -40 to +85 ºC
Humidity 5 to 95% non-condensing

0-70 ºC

C. Front Panel Indicators

Label Function

+12V +12 VDC supply, green

-12V -12 VDC supply, green
+15V +15 VDC supply, green
+5V +5 VDC supply, green
+3.3V +3.3 VDC supply, green
NT SHT DWN NT in shutdown state, green, blinking
PWR FAIL Loss of AC power, red
CHRG/COMP Battery charging, orange; Battery fully

charged, green

D. Power Specification

Criteria Voltage Power

AC - DC 90-132 / 180-264 -> 15V ~130W

DC - DC 15V -> 3.3V ~30W
15V -> 5V ~75W
15V -> ±12V ~25W

PWRS-0026 User Manual Page 8 of 19

E. On Board Fuses

Fuse Voltage Value

F1 +12V 3A
F2 -12V 0.375A
F3 +3.3V 5A
F4 +5V 10A
F5 +5V 10A

PWRS-0026 User Manual Page 9 of 19

IV. Power Supply Card

PS PCBA is responsible for converting AC input line to all required DC
voltages needed in a cPCI system. It uses an AC/DC of 130W for the f irst
phase and is designed for future upgrade to 180W with no additional PCB
modifications. Three DC/DC converters provide conversion of the 15V
(AC/DC output) to all required DC levels; one for 5V, one for 3.3V and one
for ±12V.

A. Power Supply Block Diagram

AC IN

connector

DC-DC

ACL

ACN

AC/DC

Input :

190-132/180-264V

Output :

15V

5V,75W

DC-DC

3V,30W

DC-DC

+-12V,25W

M-type
Conne

ctor

Transition
Connector

signals

including:

charger
status, NT
staus and

power failure

LED's

LED Indication

PWRS-0026 User Manual Page 10 of 19

P/S board shown with Logic board

B. UPS Option

The UPS option provides battery backup, up to 5 minutes, in
order to allow the operating system to safely shut down upon
a power failure. This system consists of two major
components:

LOGIC is a mezzanine board to the PS card. It contains
cPCI backplane connections through J1 and J5. J1 is used
for PCI interface to the HOST, and J5 is used for power
signal transition between the battery and the charger, and
also used to route the control signal for power sequence
between HOST and UPS control when in serial handshake
mode.

BACKUP is a cPCI card which is inserted from the back
side of the cage behind the second slot and contains the
battery and serial port handshake connector.

C. Functionality

The UPS provides backup power during a power loss. The
logic is dependent upon the driver installed. A driver for
serial handshake and for a full PCI mode is available. In
either case, a charge circuit continually monitors the battery
and provides charging when needed. The charge point has
built in hysteresis. During a standard operating system
shutdown, the UPS is not activated. During power loss, a
shutdown under battery power is completed.

PWRS-0026 User Manual Page 11 of 19

V. Logic Board

LOGIC board is responsible for :

1) PCI interface with the HOST, achieved by using a smart PCI to
LOCAL bridge

2) UPS control – including charger circuitry, power failure detection
and handshake with NT via serial bus or CPCI bus for power shut
down sequence.

3) Routing power signals from the BACKUP board to PS during power
failure.

The power failure detection circuit is responsible for identifying a power
failure and switching the Backup. During a short power loss, the logic
(with selectable FAIL_TIME), may rely on internal capacitance to ensure
continuous operation rather than aborting to a shutdown mode.

PWRS-0026 User Manual Page 12 of 19

A. LOGIC Board Block Diagram

Battery related

signals

configuration

Charger

circuitry

Charge
Control

UPS control

system

power

sequence

Control

Serial Interface

PCI to LOCAL

Bridge

Staus

signals

power

fault

staus

indication

LED's

PCI Interface

signals

Isolation

J5 PCI

Connector

Transition
connector

battery

on/off

J1 PCI

Connector

PWRS-0026 User Manual Page 13 of 19

VI. BACKUP Board

BACKUP holds the battery pack on rear side of the cage, and provides
power to the LOGIC board through J5 (CPCI standard connector). A D­sub 9 connector also provides handshake logic signals with a selected
COM port.

The battery pack is capable of powering a 130 watt system for a minimium
of 5 minutes. The 12 VDC battery pack consists of (10) 1.2 VDC cells in
series, and can supply 10.8 amps for more than 5 minutes as shown in
the graph below:

120 W 72 W 48 W

Charging time of fully discharged battery pack lasts 5 hours maximum.
Typical charging time is 3.6 hours. Battery is rated for 500 full discharge
to charge cycles.

PWRS-0026 User Manual Page 14 of 19

A. Battery Backup Block Diagram

control

signals

Battery Pack

battery power

CPCI J5

connector

battery on/off

Switch on/

off circuit

Serial port

Serial Handshake Signal Connector

Ref Signal name BACKUP Signal COM x Signal

1 NT_CLSD 4 4
2 NT_SHTDWN_BUF 8 8

battery power

NT & UPS derial interface

PWRS-0026 User Manual Page 15 of 19

VII. PCI Driver Operation

A Windows NT driver is provided to manage all UPS functions. After
installation, the driver will run as a back ground service, and provides
access to all set up parameters through the Control Panel icon. Select
and fill in any parameters which need to be modified from default. All
communication between the processor and UPS is through the PCI bus.

Default for UPS Time is 120,000 ms.
Default for Fail Time is 1,000 ms.

Logic:

On power up, the UPS driver task starts automatically. Assuming that the
UPS driver is installed and activated through the Control Panel utility, the
UPS is enabled and begins charging. CHRG/COMP will be orange. Upon
being fully charged, CHRG/COMP will turn green.

The system continuously checks for a power failure, indicated by the
PWR FAIL LED. A voltage loss for less than Fail Time will have no effect
on the system. A voltage loss for Fail Tim e or greater will result in System
Shutdown with battery backup assistance.

All programs will be shut down, and the Registry will be saved. The UPS
will monitor this activity, and upon completion will turn off the System.

If for any reason this does not happen (ie. operating system locks up), the
UPS will turn off the System after a time period of UPS_TIME.

Upon a User selected Shutdown of NT, all battery backup functionality is
disabled.

PWRS-0026 User Manual Page 16 of 19

VIII. Handshake Mode Operation

The following describes the internal logic and variables used in
Handshake Mode. The standard NT UPS functionality is used in addition
to the following logic. A driver and DOS utility are provided with this
functionality.

On power up, UPS_ENABLE = 0
After NT completes boot, set UPS_ENABLE = 1

POWER_OK = 1 until power detection circuit determines power loss, then
POWER_OK = 0
FAIL_MODE = 1 if POWER_OK = 0 for more than FAIL_TIME
If FAIL_MODE and UPS_ENABLE = 1, provide UPS battery power until
time > UPS_TIME or REMOTE_UPS_SHUTDOWN is received.

On standard NT shut-down, UPS functionality is disabled.

Definition of terms:

UPS_ENABLE Internal register which controls enable

state of UPS

POWER_OK Internal register which indicates status of

incoming power line

FAIL_TIME Time that a no power condition is

detected until FAIL_MODE = 1

UPS_TIME Time that power is supplied after

FAIL_MODE = 1

REMOTE_UPS_SHUTDOWN COM port handshake signal from CPU

to shut down supply. Default time delay
is 2 minutes.

PWRS-0026 User Manual Page 17 of 19

IX. Memory Map

Name
Description Enable battery to supply power to the BUS in “fail mode”
Offset 0x0
Size 32bit
Values 1 Enable

Default Disable
Updated by NT program

Name
Description Time to supply power for shutdown
Offset 0x4
Size 32bit
Values 10000ms to 300000ms
Scale Factor 127ms
Default 120000ms
Updated by NT program

Name
Description Acceptable duration of power loss before triggering a shutdown
Offset 0x8
Size 32bit
Values 50ms to 2000ms
Scale Factor 16 ms
Default 1000 ms
Updated by NT program

Name
Description Power status
Offset 0xC
Size 32bit
Values 0 no power

Default 1
Updated by Power supply board

UPS_ENABLE

0 Disable

UPS_TIME

FAIL_TIME

POWER_OK

1 power OK

PWRS-0026 User Manual Page 18 of 19

X. Warranty

Tenta Technology warrants the original purchaser for two years from the
date of delivery for any defect in the product, material or workmanship.
Product should be used in suitable installation environment and for the
purposes it was designed. Any damages caused by natural disasters such
as: fire, flood, wind and lightning are not covered. For more information,
please contact Tenta Technology customer support (see locations on
front page). Tenta Technology hardware and software are not intended
for use in any manner when human life or safety is at risk and not for use
in life support equipment.

PWRS-0026 User Manual Page 19 of 19