Dialogic D/41H Merkblatt

SW1 switch 4 (SW 1:4 in Figure 2) sets the initial hook 
switch state for the D/41H and D/21H board. This 
setting is active only when the PC is powered on but the 
firmware has not yet been downloaded to the board.  

If the initial hook switch state is set to on-hook (default) 
the board presents an inbound call with a ring no answer 
state. You can change the initial hook switch state to off-
hook to present a busy signal instead. 

Once the firmware is downloaded, the hook switch state 
is set to on-hook, and may only be changed by the 
application controlling the board.  

It is not necessary to set all D/41H or D/21H boards in 
the system to the same initial hook switch state

. 

 

Ring no 
answer 
(default) 

on-hook 

1 2 3 4

 

off 

Busy  

off-hook 

1 2 3 4

 

on 

Note:  If the PC is not powered on, the inbound call 
response is ring no answer when a board receives a call. 

If a board has problems detecting rings behind a PBX,  
you can lower the ring detection threshold. To lower the 
threshold on a channel-by-channel basis, install the 
jumpers (see D/41H Physical Description) as follows: 

 

Channel 1 
Channel 2 
Channel 3 
Channel 4 

Jumper JP101 
Jumper JP201 
Jumper JP301 
Jumper JP401 

 

Note:  A lower threshold may be too sensitive for 
boards connected to the CO and cause false detection of 
rings. 

1.  Prepare a static-safe work area, turn off all power to 

the system, and disconnect the system’s power cords 
from electrical outlets. See Figure 1. 

2.  Remove the PC cover. 

3.  Select an empty ISA expansion bus slot, and remove 

the slot’s retaining screw and access coverplate. 

4.  Insert the board’s edge connector into the bus slot. 

5.  Replace and tighten the retaining screw. 

Select a new slot and repeat steps 3–5 for each board 
you are installing. Replace the PC cover when finished. 

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The D/41H and D/21H support a single analog voice 
channel per RJ-11 jack (channel 1 corresponds to J1, 
channel 2 corresponds to J2, and so on). Use RJ-11 
connectors and phone cable to connect each voice 
channel jack to a PBX or the CO (see Figure 3). 

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A standard telephone will not function when directly 
attached to a D/41H or D/21H RJ-11 jack. 

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Install the voice board software as described in the 
documentation provided for the Dialogic software 
release and operating system in use. 

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Test the boards using D40CHK.EXE or other 
diagnostic utilities such as UDD (Universal Dialogic 
Diagnostics) that came with the Dialogic software 
release for the D/41H and D/21H. 

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For specifications and product information, refer to 

the Dialogic On-Line Information Retrieval System, 
1-800-755-5599 or 1-973-993-1063. 

The D/41H and D/21H boards have lifetime warranties. 
See the Hardware Limited Warranty card for coverage 
details. 

 

If you suspect you have a problem board, you can return 
the board to Dialogic for servicing. The following 
outlines the procedures that make up the Return 
Material Authorization (RMA) Process. 

1. Check to see if the problem is due to a mistake or 

oversight in the installation process. Be sure to run 
the diagnostic utility if you have not already done so. 

2.  Call Dialogic Technical Support at 1-973-993-1443 

to confirm that it is a problem board. 

3.  Call the RMA coordinator at 1-973-993-3000 x6374. 

Telephone lines are open from 9 a.m. to 5:30 p.m. 
EST. Give the board’s serial number (two letters and 
six digits—located on a label attached to the board) 
and a brief description of the problem to the RMA 
coordinator. The RMA coordinator will give you an 
RMA number and an estimated return date. 

4.  While observing correct static-handling procedures, 

disconnect power, cables, and remove the board from 
the chassis. 

5.  Repack the board, observing correct static-handling 

procedures. Place the board in an anti-static container 
and then put it in a shipping carton using appropriate 
packing material. Use the original shipping materials 
if possible. Include diagnostic printouts (for example, 
D40CHK) when applicable. 

6.  Write the RMA number on the outside of the box 

you are shipping (for example, RMA #2973) and 
send the package to the attention of the RMA 
number assigned. 

7.  Ship the board to Dialogic at the following address. 

Dialogic is not responsible for risk of loss or damage 
in transit. 

 

Dialogic Corporation 
1515 Route 10 
Parsippany, New Jersey 07054 

 

 

 

 

 

This equipment has been tested and found to comply with the limits for a Class 
A digital device, pursuant to Part 15 of the FCC Rules. These limits are 
designed to provide reasonable protection against harmful interference when 
the equipment is operated in a commercial environment. This equipment 
generates, uses, and can radiate radio frequency energy and, if not installed and 
used in accordance with the instruction manual, may cause harmful interference 
to radio communications. Operation of this equipment in a residential area is 
likely to cause harmful interference in which case the user will be required to 
correct the interference at his own expense. 

 

The D/41H and D/21H boards are registered with the Federal Communications 
Commission, which places several restrictions on their use. 

1.  Connection of this equipment to party lines is subject to state tariffs. 

Contact your state public service commission for information. 

2.  This equipment cannot be connected to a coin service (Central Office 

implemented systems). 

3.  This equipment complies with Part 68 of the FCC rules. On the mounting 

bracket (or enclosure) of this equipment is a label that contains, among 
other information, the FCC Registration Number and Ringer Equivalence 
Number (REN) for this equipment. The FCC Registration Number is 
EBZUSA -65588-VM-E and the REN is 1.0B. The Facility Interface Code 
(FIC) is 02LS2 and the boards use USOC jacks RJ-11C or RJ-14C. There  
is no Service Order Code (SOC). 

 

NOTE: The REN is used to determine the number of devices you may 
connect to your telephone line and still have assurance that all of those 
devices will ring properly when your number is called. In most, but not all 
areas, the sum of the RENs of all devices should not exceed five (5.0). To be 
certain of the number of devices you may connect to your line as determined 
by the RENs, call your local telephone company and request information on 
the maximum REN for your calling area. 

 

If requested, the FCC Registration Number and REN must be provided to 
the telephone company. 

4.  The telephone company may make changes in its technical operation or 

procedures. If these changes affect the use of this equipment, the telephone 
company is required to give you advance notice. 

5.  If you experience any trouble with the telephone line during or after 

installing this equipment, disconnect the equipment from the t elephone line 
to determine if the equipment is causing difficulties. Once the equipment  
has been disconnected, by either you or the telephone company, do not 
reconnect it until the problem has been corrected or the Dialogic equipment 
repaired by Dialogic Corporation as defined below. 

6.  Any repairs to this equipment must be carried out by Dialogic Corporation 

or our designated agent. This stipulation is required by the FCC and 
applies during and after the warranty period. If you suspect the equipment 
is malfunc-tioning, check the appropriate part of the manual to see that all 
installation procedures have been followed correctly. 

 

If checking the installation procedures does not locate the problem, 
contact your field service representative or our home office. The home 
office address is: 

 

Dialogic Corporation 
1515 Route 10 
Parsippany, NJ 07054 
(973) 993-3000 
 

 

 

The Canadian Department of Communications label identifies certified 
equipment. This certification means that the equipment meets certain tele-
communications network protective, operational and safety requirements.  
The Department does not guarantee the equipment will operate to the user’s 
satisfaction. 

Before installing this equipment, users should ensure that it is permissible 
to  
be connected to the facilities of the local telecommunications company. The 
equipment must also be installed using an acceptable method of connection. 
In some cases, the company’s inside wiring associated with a single line 
individual service may be extended by means of a certified connector 
assembly (telephone extension cord). The customer should be aware that 
compliance with the above conditions may not prevent degradation of 
service in some situations. 

Repairs to certified equipment should be made by an authorized Canadian 
maintenance facility designated by the supplier. Any repairs or alterations 
made by the user to this equipment, or equipment malfunctions, may give the 
telecommunications company cause to request the user to disconnect the 
equipment. 

Users should ensure for their own protection that the electrical ground con-
nections of the power utility, telephone lines and internal metallic water 
pipe system, if present, are connected together. This precaution may be 
particularly important in rural areas. 

CAUTION: Users should not attempt to make such connections themselves, 
but should contact the appropriate electric inspection authority, or 
electrician, as appropriate. 

 

The Load Number (LN) associated to each terminal device denotes the 
percentage of the total load to be connected to a telephone loop which is 
used  
by the device, to prevent overloading. The termination on a loop may consist 
of any combination of devices subject only to the requirement that the total 
of the Load Numbers of all the devices does not exceed 100. 

Dialogic models D/41H and D/21H have a load number of 5. 

This Class A digital apparatus meets all requirements of the Canadian 
Interference-Causing Equipment Regulations. 

Cet appareil numérique de la classe A respecte toutes les exigences du 
Règlement sur le material broilleur du Canada.  

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