Computer buses and slots connectors pinouts
Advanced Communications Riser (ACR) is a slot for connecting a specific hardware, such as AMR hardware, Cable Modem, DSL, Wireless, HomePNA, Ethernet, etc. This slot is a successor to AMR (Audio Modem Riser).

Such a slot was designed by ACR Special Interest Group in 2000 as a successor to AMR slot. ACR was designed to have backward-compartibility with AMR (not as incompartible Intel's CNR slot - another successor of AMR).

Correct designation is Advanced Communications Riser (also Advanced Communication Riser, note no ending "s" in a second word). Sometimes incorrectly referenced as Advanced Card Riser or Audio/Communications Riser.

This slot uses a slightly repositioned and reversed 5V PCI slot; initially it was designed to replace the last one ISA slot that remained on motherboards at a time. But while ISA slot was able to share place with nearest PCI slot (e.g. you may install either PCI card or ISA card using one placeholder of the chassis, as component side of ISA and PCI cards are different), ACR was not able (then, of course, ACR may share its place with ISA slot, but designs that implement it are unknown).

Generally these slots used card orientation as with AMR/PCI (NVIDIA nForce 420-D Reference Board, QDI KD7 (K7V 8366), Biostar M7VIB, Chaintech CT-7VJD2, 7NJS, CT-6VJD, Shuttle AV32, Transcend TS-APR3) to make use of AMR cards possible. Then B is the component (main) side of board, A is the solder side.

ASUS have been seen making this slot with CNR/ISA card orientation (ASUS A7N266, A7V266, CUV266); it allows this slot to share place with nearest PCI slot, but makes AMR and other ACR cards incompartible with it; ASUS produced its own ACR-like cards (ACR-A6CH). ASUS board's component side is A, and solder side is B.

VIA VT5431E Reference Board 2 appears to have slot positioned as AMR/PCI, but it appears slightly shifted to nearest PCI slot. It is unknown accurately, is this really true or not.

SiS 635 Reference Board (one of the earliest boards with ACR support) appears to have this slot shift much more to card bracket than required; it looks like a developer's mistake.

Generally has the same color as PCI (older slots) or specific blue (more recent ones), may be brown as AMR.

 

Pinout is as follows:

Light green (Rows 1-23 with keyway) = Current AMR Connections
Blue  (Row 24) = EEPROM Connections
Cyan (Rows 25-35, 45-55) = MII/GPSI Connections, interfaces 1 and 2
Yellow (Rows 36-44) = DSL Connections
Red (Rows 56-60) = Wireless Connections (Future implementations)
 

 

B1

Audio_Mute#

AUDIO_PWRDN

A1

B2

GND

MONO_PHONE

A2

B3

MONO_OUT/PC_Beep

RESERVED

A3

B4

RESERVED

RESERVED

A4

B5

RESERVED

RESERVED

A5

B6

Primary_DN#

GND

A6

B7

.-12v

.+5v dual/+5v SB

A7

B8

GND

USB_OC#

A8

B9

.+12v

GND

A9

B10

GND

USB+

A10

B11

.+5v Digital

USB-

A11

 

Keyway

Keyway

 

 

Keyway

Keyway

 

B12

GND

GND

A12

B13

RESERVED

S/P-DIF-IN

A13

B14

RESERVED

GND

A14

B15

.+3.3vDigital

.+3.3v dual/+3.3v SB

A15

B16

GND

GND

A16

B17

AC97_SDATA_OUT

AC97_SYNC

A17

B18

AC97_RESET#

GND

A18

B19

AC97_SDATA_IN3

AC97_SDATA_IN1

A19

B20

GND

GND

A20

B21

AC97_SDATA_IN2

AC97_SDATA_IN0

A21

B22

GND

GND

A22

B23

AC97-MSTRCLK

AC97_BITCLK

A23

B24

EEPROMSCL

EEPROMSDA

A24

B25

TXD3

RXD3

A25

B26

MDIO

MDC

A26

B27

TXD2

RXD2

A27

B28

TX_ENABLE

RX_DV

A28

B29

TXD1

RXD1

A29

B30

DGND

DGND

A30

B31

TXD0

RXD0

A31

B32

TX_ERROR

RX_ERROR

A32

B33

TX_CLK

RX_CLK

A33

B34

DGND

DGND

A34

B35

COL

CRS

A35

B36

DGND

DGND

A36

B37

DSL_RDCLK

DSL_TDCLK

A37

B38

DSL_WAKE

DSL_IN:1

A38

B39

DSL_OUT:0

DSL_IN:0

A39

B40

DGND

DGND

A40

B41

DSL_OUT:1

VCXO_CTL

A41

B42

VAUX

DSLRST

A42

B43

TDFRAME

RDFRAME

A43

B44

DGND

DGND

A44

B45

TXD3

RXD3

A45

B46

MDIO

MDC

A46

B47

TXD2

RXD2

A47

B48

TX_ENABLE

RX_DV

A48

B49

TXD1

RXD1

A49

B50

DGND

DGND

A50

B51

TXD0

RXD0

A51

B52

TX_ERROR

RX_ERROR

A52

B53

TX_CLK

RX_CLK

A53

B54

DGND

DGND

A54

B55

COL

CRS

A55

B56

Control1

Control2

A56

B57

RX_CLOCK

B.D. Data

A57

B58

DGND

DGND

A58

B59

S_DATA

S_CLOCK

A59

B60

B.D. Data

RX CLOCK

A60

 

Pins are counted from card bracket to the deeper edge of board. As in AMR, keyway positions are not designated as pin positions, e.g. numbering is A1...A11, keyway, A12...A60.

Note the picture:

 

Slot name                                         Card orientation

AMR Slot

 

+-A1--------A11-+-A12--------A23-+               |________________________

| [::::::::::::] [:::::::::::::] |               |     []   []   []

+-B1--------B11-+-B12--------B23-+               |

"Standard" ACR Slot

 

+-A1--------A11-+-A12------------------A60-+     |________________________________

| [::::::::::::] [:::::::::::::::::::::::] |     |   []   []   []   []   []

+-B1--------B11-+-B12------------------B60-+     |

ASUS ACR Slot

 

+-A1--------A11-+-A12------------------A62-+     |

| [::::::::::::] [:::::::::::::::::::::::] |     |   []   []   []   []   []

+-B1--------B11-+-B12------------------B62-+     |~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~PCI 5V Slot

+-A1-------------------A49-+-A52-------A62-+     |________________________________

| [:::::::::::::::::::::::] [::::::::::::] |     |   []   []   []   []   []

+-B1-------------------B49-+-B52-------B62-+     |

PCI 3.3V Slot

+-A1--------A11-+-A14------------------A62-+     |________________________________

| [::::::::::::] [:::::::::::::::::::::::] |     |   []   []   []   []   []

+-B1--------B11-+-B14------------------B62-+     |

 

 

 

 

 

124 pin (98+22) PCI 5 volt EDGE connector layout
124 pin (98+22) PCI 5 volt EDGE connector
There are no any reports for this pinout! You may rate this document by clicking the button below.

Is this pinout
Source(s) of this and additional information: http://web.archive.org/web/20021129071202/http://www.acrsig.org/documents/ACR_Newsletter_Volume_1.PDF
This page contain parts under Copyright © 2000-2015 by pinouts.ru team.
No portion of this webpage may be reproduced in any form without providing visible HTML link to Old.Pinouts.ru . Webmaster permission required in any other cases.
Efforts have been made to ensure this page is correct, but it is the responsibility of the user to verify the data is correct for their application.