Dialogic VFX/41JCT-LS-EW Merkblatt

Part number: 64-0177-02

Copyright © 2006-2007 Dialogic Corporation. 

All rights reserved.

The Dialogic

®

 D/41JCT-LS-EW and VFX/41JCT-LS-

EW boards are combined media analog boards with 

H.100 connectivity and four ports of voice, fax, and 

speech in a full-length PCI Express form factor. The 

D/41JCT-LS-EW board supports basic fax, while the 

VFX/41JCT-LS-EW board supports enhanced fax.
The D/41JCT-LS-EW and VFX/41JCT-LS-EW boards 

include the following components:
J1-J4 jacks: Four RJ-11 jacks to connect to PBX or 

telephone network (Central Office) lines.

SW30: Rotary switch used when setting board ID.
SW4: Slide switch used to set hook state at 

startup.

CT Bus connector: H.100 telephony bus 

connector.

JP2 jumper: CT Bus termination jumper.
JP1 jumper: Not used.
PCI Express connector: Host bus connector. 

Compatible with x1 or larger PCI Express Link 

connectors.

Additional information about the D/41JCT-LS-EW 

and VFX/41JCT-LS-EW boards is available from a 

number of sources.
The product data sheet, available at 

http://

www.dialogic.com/products/list.asp

, provides a 

functional description as well as information about 

applications and configurations, features, and 

technical specifications.
Refer to the Release Guide and the online Release 

Update for your Dialogic

®

 System Software release 

to verify that the D/41JCT-LS-EW and VFX/41JCT-

LS-EW are supported in the release, and for 

information on any new features or issues that may 

relate to it.
The Regulatory Notices document that is packed 

with each D/41JCT-LS-EW and VFX/41JCT-LS-EW 

board contains safety warnings and national 

requirements for proper operation of 

telecommunications equipment.

CAUTION: All computer boards are sensitive to 

electrostatic discharge (“ESD”). Handle all static-

sensitive boards and components at a static-safe 

work area, and observe anti-static precautions at 

all times.

If you are not familiar with ESD safety precautions, 

visit 

http://dialogic.com/support/hwinstall

 to learn more.

Unpack the board according to the following steps:
1. Prepare a static-safeguarded work area.
2. Carefully remove the board from the shipping 

carton and anti-static packaging. Handle the 

board by the edges and avoid touching the 

board’s components.

3. Lay the board on the static-dissipative work 

surface.

Note: Place boards in static-shielding bags when 

carrying boards from station to station.

CAUTION: Do not remove the board from the 

anti-static packaging until you are ready to install 

it. Observe proper anti-static precautions at all 

times.

The D/41JCT-LS-EW and VFX/41JCT-LS-EW boards 

use Plug and Play technology to simplify 

installation. No user configuration is required for 

IRQ or memory address.
The D/41JCT-LS-EW and VFX/41JCT-LS-EW boards 

have the following manually configurable options:

■

Board ID

■

Initial hook state

■

CT Bus termination

When the system is started, each Dialogic

®

 

telecom board is assigned a board instance ID 

number that programs can use to identify 

individual boards in a multi-board system. The 

setting of SW30 controls the generation of the 

instance numbers.
Windows Systems: In a Windows system, leaving 

SW30 set to the 0 position (the factory default 

setting) on all Dialogic

®

 telecom boards causes 

the system software to assign instance numbers 

geographically, based on the bus and slot 

numbers. Note that when using this method, 

there is no way to know what the instance 

numbers will be until the system is started and 

configured, and the instance number for any 

given board is likely to change when there is any 

change in the number or arrangement of boards 

in the system.
As an alternative, you may set SW30 on each 

board to a different position (0-9 or A-F) to 

explicitly assign specific ID numbers to the 

boards. Note that each board must be set to a 

different ID number.
In either case, you can read the ID numbers 

assigned to the boards in the Dialogic

®

 

Configuration Manager (DCM) after you start the 

system and invoke that tool.

Linux Systems: In a Linux system, you must 

explicitly specify the board ID numbers by 

setting SW30 on each board to a different 

position (0-9 or A-F). Refer to the Configuration 

Guide for Springware architecture products in 

your Dialogic

®

 System Software documentation 

for further information about the board ID 

numbers.

The position of slide switch SW4 determines how 

the board responds to an incoming call when the 

chassis power is on but the board is not initialized. 

Set the SW4 slide switch as follows:

■

SW4 = off (default): Callers hear ringing (on-

hook).

■

SW4 = on: Callers hear a busy signal (off-hook).

Note: If the chassis power is off, callers hear 

ringing (on-hook) regardless of the setting of SW4.

SW4

OFF

SW4

ON

The Computer Telephony bus (CT Bus) provides 

communication and flexible resource sharing 

among the boards connected to the bus. The D/

41JCT-LS-EW and VFX/41JCT-LS-EW boards have a 

CT Bus connector that complies with the ECTF 

H.100 specification, and as such can be connected 

to the CT Bus with a CT Bus cable. To connect the 

boards to the CT Bus, set the CT Bus jumpers 

according to instructions in this section.
If you do not require media sharing or switching 

across the CT Bus, you may use the D/41JCT-LS-

EW or VFX/41JCT-LS-EWby itself with no CT Bus 

cable. If you are not using a CT Bus connection, 

you do not need to set the CT Bus jumpers and you 

can proceed to Section 4, Choosing a Slot.”
Note: If you are operating the board without a CT 

Bus connection, you must configure the board to 

H.100 bus mode. Otherwise, all attempts to 

download to the board will fail because the CT Bus 

clock is absent.
The following instructions apply only to the boards 

at each end of the CT Bus cable. Boards that are in 

the middle of the CT Bus cable should not be 

terminated. 
Note: If these boards are operating in SCbus 

mode, CT Bus (H.100) termination is not required.
JP1 jumper is reserved and unused. Do not install 

a jumper link across the pins of JP1.
JP2 is a 2-pin jumper that is used to terminate the 

CT Bus, ensuring that proper electrical 

characteristics exist on the CT Bus. By factory 

default, this jumper is not terminated on the board. 
To use the CT Bus:

■

Install a jumper link on the JP2 jumper of a 

board to terminate the CT Bus at that board.

■

Only terminate the first and last boards (the 

boards located at each end) on the CT Bus cable.

■

Do not install a jumper link across the pins of 

JP2 on boards located between the end boards 

on the CT Bus cable (the jumper link must be 

disconnected on the JP2 jumper to disable 

termination).

The JP2 jumper terminates the following H.100 

signals: CT_FRAME_(A&B) and CT_C8_(A&B).

The D/41JCT-LS-EW and VFX/41JCT-LS-EW boards 

implement a PCI Express x1 lane configuration, 

allowing them to be used in any full-length PCI 

Express slot that fully meets PCI Express Card 

Electromechanical Specification Revision 1.0a or 

higher. 
If the D/41JCT-LS-EW or VFX/41JCT-LS-EW is the 

only Dialogic

®

 telecom board in the system, you 

may choose any slot for the installation. 

JP2

JP1

Pin 1

2

2

1

1

JP2 (top row, pins 1 and 2)
JP1 (bottom row, pins 1 and 2)