Comdial Dxp Plus Instructions Manual

2.4 Checking Signal Paths
To verify correct signal paths between the server and the system, use the following illustration to locate
the signal paths and check them using an ohmmeter.
Be sure that the RD, TD, RTS, and CTS signals from the server connect to the appropriate signals at the
system serial data port as detailed in this table.
Server Signal ConnectionsSystem Signal Connections
9-Pin Serial Connector25-Pin Serial Connector Modular Serial Data Connector
RDPin 2RD Pin 3 TD Pin 4
TDPin 3TD Pin 2 RD...

2.5 Programming The DXP and DXP Plus System
You can change the baud rates, data bits, stop bits, parity, and flow control for each serial data port in the
system to match the data device that you connect there. Select a serial port and set the parameters shown
in the following table.
Baud
OutBaud
InData
BitsStop
BitsParityFlow
Control
96009600 8 1 NONE RTS/CTS
Once you enter the DXP or DXP Plusprogramming mode, perform the following steps;
1. Press CONTROL T for main menu.
2. From main menu, select...

3.0 Administering The Data Link From Server To System
This section covers system administration issues, including the opening and closing of the Telephony
Services data link, and using the system driver/interface.
3.1 Using Administration Options
From the  DXP Administration portion of the main menu, the following options exist:
1. About...
2. Active Session Information
3. DXP Link Administration
4. Select Active Serial Port
3.1.1 Using The About... Menu To Access Software Version Information
Selecting...

3.1.3 Using The Link Administration Menu Options
Selecting the Link Administration menu option provides additional options as follows:
1. Clear Port Statistics
2. Close DXP Link
3. Edit Port Configuration
4. Open DXP Link
The first line of the option screen shows the active serial port (example, “Board:0 Port:0).
3.1.3.1 Clearing Port Statistics
Selecting this option resets all of the monitored items on the “Link Statistics Screen” such as busy hour,
busy minute, and packets received.
3.1.3.2 Closing A...

4.0 Trouble shooting The Interface Option
Problem Possible Cause
Unable to load Comdial NLM 1. Telephony Service’s software not installed correctly.
2. Telephony Service’s network loadable module (NLM) not loaded.
The COMDIAL.NCF file on the supplied diskette shows the loading
order of all required NLM’s
Cannot establish DXP link 1. Line cord between server and DXP not connected or loose
connection in house wiring, if used.
2. Software key incorrect or not installed.
3. DB-9 to DB-25 adapter does not...

Installing And Programming The Analog Terminal
Interface On The Digital Communications System
1.0 Introducing The Analog Terminal Interface
This publication describes the features, applications, installation, and specifications of the Comdial Analog
Telephone Interface (ATI-D-1PT). The ATI-D-1PT is a multipurpose,on-premiseaccessory for the digital
communications system.  It provides the following features:
·INDUSTRY-STANDARD TELEPHONE (IST) INTERFACE -This feature adapts most industry-standard
telephone...

1.1 Detailing The Specifications
Electrical Specifications
Power requirements: Supplied by the common equipment
Ringing voltage: 55 VAC Nominal @ 20 Hz
(45 VAC minimum)
Power rated to maximum
REN = 2.0
Battery feed voltage: 24 VDC nominal
Loop current limits between ATI-D and IST interface: 20 ma min. at 620 ohms
70 ma max. at 0 ohms
DC loop limits from ATI-D to industry standard
interface per port: 620 ohms maximum including interfaced
telephony device (Approximately 4000 feet with
#26 AWG twisted-pair...

Environmental Specifications
Operating temperature: 32-122 F (0-50 C)
Humidity: 90 % relative, non-condensing
Mechanical Specifications
Height: 2.375 inches
Width: 8.062 inches
Length: 11.125 inches
Weight: 4 lbs. (plus 2 lbs.
for packing material)
Industry/Regulatory Standards
FCC registered and listed for safety compliance as part of digital communications system
FCC certified, Part 15 (class A)
Installing And Programming For ATI–D–1PT IMI89–208
Installing The ATI–D–1PT – 3 

2.0 Installing The Analog Terminal Interface
2.1 Detailing The Mounting Considerations
1. The ATI-D-1PT can be attached to any sturdy, flat surface.
2. The distance between the ATI-D-1PT and the common equipment must be 25 feet or less.
3. The mounting location must be secure and dry and have adequate ventilation. The temperature range of the
location must be within 32-122° F (0-50° C).
4. If the mounting surface is damp or if it is concrete or masonry material, a backboard must be attached to it
before...

Outline Dimensions
(In Inches)Spacing For
Mounting Hardware
(In Inches)
AW139
Detailing The ATI–D–1PT Dimensions
Installing And Programming For ATI–D–1PT IMI89–208
Installing The ATI–D–1PT – 5