Comdial Dxp Plus Instructions Manual

Idle Line Programming
Idle Line Preference
With you enable this feature, a station automatically connects to an idle line when the user lifts the telephone’s
handset.
1. Press CONTROL T for main menu.
2. From main menu, select stations and press ENTER.
3. From stations menu, select COS programming and press ENTER.
4. Type class of service number (1-32) and press ENTER.
5. Fro COS programming menu, type item number for feature and press ENTER.
6. Press SPACE bar for feature setting.
7. When finished,...

Dialing Mode
Program the line port to match either a DTMF tone or a rotary (pulse) dialing line as supplied by the central office
(CO).
1. Press CONTROL T for main menu.
2. From main menu, select lines and press ENTER.
3. From lines menu, select line programming and press ENTER.
4. Type line port number or name and press ENTER.
5. From line programming menu, type item number for feature and press ENTER.
6. Press SPACE bar for feature setting and press ENTER to accept setting.
7. When finished, press...

Flexible Ringing Assignments
Program ringing assignments on a per station/per line/per intercom number basis.  Ringing can be immediate,
delayed, or special purpose. Use the procedures in this section to customize the ringing features for the system.
Direct Ringing
Use this procedure to choose the line ports that you want to ring at a station as soon as a call appears. Direct
ringing sounds during the day 1 and day 2 time periods but does not ring during the night ringing mode or during
the manual night...

Day 1 Ring
Use this procedure to choose the line ports that you want to ring at stations during the day 1 ringing mode time
period. Refer to the paragraph below titled, Day 1, Day 2, and Night Ringing Begin and End Times, to set the
beginning and ending times of this ringing.
1. Press CONTROL T for main menu.
2. From main menu, select stations and press ENTER.
3. From stations menu, select station programming and press ENTER.
4. Type personal intercom number or previously assigned name and press ENTER....

Night Ring (Night Transfer - Of Ringing)
Choose the line ports that you want to ring, along with the delayed ringing line ports, at stations during the night
ringing mode of operation. The ringing arrangement that you configure here is the arrangement that is active both
during the automatic night ringing time period and whenever the attendant manually activates the night transfer
(of ringing) operation. Do note that the attendant commanded night ringing period supersedes the automatic night
ringing...

Personalized Ringing Tone
Program a station to ring in one of several distinctive tones for proprietary digital telephones and in one of four
distinctive tones for analog telephones.
1. Press CONTROL T for main menu.
2. From main menu, select stations and press ENTER.
3. From stations menu, select station programming and press ENTER.
4. Type personal intercom number or previously assigned name and press ENTER.
5. From the station programming menu, type item number for feature and press ENTER.
6. Type...

Installing and Programming The ISDN–PRI Interface
In The DXP Plus Digital Communications System
Introducing The ISDN–PRI Interface
Integrated Services Digital Network (ISDN) provides integrated voice and data over a common telephone
company facility. There are two methods of ISDN access that are currently available: ISDN–BRI (basic) and
ISDN–PRI (primary). ISDN–BRI provides a way for subscribers to get digital service from the telephone
company supplier for two telephones or a telephone and a data device...

Introducing The T1/PRI Line Board
The revision B or later DXPT1 board with special-purpose firmware serves as host for the DXPRI card and gives
gives the digital communications system the capability to handle up to 24 channels of voice and/or data
transmissions over a single four-wire cable using multiplexing techniques. The DXPT1 board includes a customer
service unit (CSU) to eliminate the need for a external CSU.
Defining T1/PRI Operation
T1/PRI is the digital two-way transmission of...

Understanding The DXOPT-SYN Synchronization Card
The DXOPT–SYN card uses a reference timing frequency of 8 KHz that it derives from the 1.544 MHz frequency
supplied to the T1/PRI board by the central office (CO) or other external source. By referencing this 8 KHz with
8 KHz timing derived internally, the master 16.384 MHz voltage-controlled oscillator (VCO) can be
synchronized. The transmit clock (1.544 MHz) is derived from the 16.384 MHz frequency on the T1/PRI board. If
the 1.544 MHz received frequency...

Configuring The T1/PRI Board
When the factory arranges the T1/PRI board for ISDN–PRI support, it installs the DXPRI card and the
appropriate chip firmware on both boards. For field-up grade of existing T1 boards, you must install the DXPRI
card on your existing DXPT1 board and change the firmware on the DXPT1. For instructions to do this, refer to
the paragraph titledUp-Grading Your DXPT1 Board For ISDN–PRI Support, located at the end of this
publication.
Before you install a T1/PRI board in the digital...