NEC Neax 2400 Ipx Isdn Features And Specifications

							NEAX2400 IPX ISDN Features and Specifications
Page 46NDA-24311, Issue 1
D-117 Data Line Security - PRI
D-117  Data Line Security - PRI
General Description
This feature allows those line circuits used for ISDN data transmission to be protected from interruptions such as
ATTENDANT CAMP-ON WITH TONE INDICATION [A-1], BUSY VERIFICATION [B-3], EXECUTIVE
RIGHT-OF-WAY [E-1], and ATTENDANT OVERRIDE [A-7].
Operating Procedure
No manual operation is required.
Service Conditions
1. When the Attendant is restricted from Camping-On to a Data Security station, the attempted action results
in reorder tone.
2. All bridge-on attempts directed toward stations with a DATA LINE SECURITY - PRI call in progress
result in a reorder tone.
3. When any of the other features listed above are restricted, reorder tone is transmitted.
4. This feature is activated via system data programming. (Refer to CLASS OF SERVICE - INDIVIDUAL
[C-15] for details.)
5. The DATA LINE SECURITY - PRI feature functions on originating and terminating calls.
6. DATA LINE SECURITY - PRI cannot prevent disruptions from interfering with data transmission when
the disruption occurs outside the NEAX2400 IPX.
7. The following connections are restricted when DATA LINE SECURITY - PRI is active, since transmitted
tones are involved in their operation.
ATTENDANT OVERRIDE [A-7]
BOSS-SECRETARY OVERRIDE - D
term [B-5D]
BUSY VERIFICATION  [B-3]
CALL WAITING - ORIGINATING  [C-31]
CALL WAITING - TERMINATING [C-12]
CALL FORWARDING - INTERCEPT/ANNOUNCEMENT - ATTENDANT [C-75]
EXECUTIVE RIGHT-OF-WAY  [E-1]
EXECUTIVE RIGHT-OF-WAY - D
term [E-1D]
PRIVACY RELEASE [P-18]
Modem Pooling Connection
Data Call through Data Module or Data Adapter 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 47
Data Privacy on Demand - PRI D-118
D-118  Data Privacy on Demand - PRI
General Description
This feature allows a user to prevent interruptions to ISDN data calls by ATTENDANT CAMP-ON [A-1], BUSY
VERIFICATION [B-3], CALL WAITING - TERMINATING [C-12], or ATTENDANT OVERRIDE [A-7] by
dialing a DATA PRIVACY feature code. This feature is set automatically when a data connection is established.
Operating Procedure
To activate DATA PRIVACY ON DEMAND - PRI from a single line
1. Lift handset; receive dial tone.
2. Dial desired number.
3. Before beginning data communications, flash switchhook; receive special dial tone.
4. Dial DATA PRIVACY ON DEMAND access code; receive service set tone.
5. Flash switchhook to return to the original connection, or wait 30 seconds to return automatically.
6. To cancel Data Privacy, flash switchhook; receive special dial tone.
7. Dial DATA PRIVACY ON DEMAND cancel code; receive service set tone.
8. To return to the original connection, flash switchhook momentarily, or wait 30 seconds to return
automatically.
To activate DATA PRIVACY ON DEMAND - PRI from a Dterm
1. Lift handset; receive dial tone.
2. Dial desired number.
3. Before beginning data communications, press the DND key.
4. The display shows PRIVACY SET for 3 seconds and returns to original connection. The DND lamp
flashes as long as DATA PRIVACY ON DEMAND is set.
5. If the DND key is pressed again, PRIVACY CANCEL is displayed for 3 seconds and DATA PRIVACY
ON DEMAND - PRI will be cancelled.
Data connection (Dterm/Data Adapter or Data Module)
No manual operation is required. When a Data Call (Data Adapter/Data Module) is originated, DATA PRI-
VACY ON DEMAND - PRI is set automatically. When the data call is disconnected, DATA PRIVACY
ON DEMAND - PRI is cancelled automatically.
Service Conditions
1. The following connections are restricted when DATA PRIVACY ON DEMAND - PRI is set. All bridge-
on attempts directed toward stations, which have set Data Privacy or have a data call in progress, will result
in reorder tone.
ATTENDANT OVERRIDE  [A-7]
BUSY VERIFICATION  [B-3]
CALL WAITING - TERMINATING  [C-12]
CALL FORWARDING - INTERCEPT/ANNOUNCEMENT - ATTENDANT  [C-75]
EXECUTIVE RIGHT-OF-WAY  [E-1]
PERIODIC TIME INDICATION TONE  [P-11]
PRIVACY RELEASE  [P-18]
CALL FORWARDING - BUSY LINE set by boss to secretary 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 48NDA-24311, Issue 1
D-118 Data Privacy on Demand - PRI
Service Conditions (cont’d)
2. Data Privacy is cancelled automatically when the call is disconnected.
3. When Data Privacy is activated, the associated line cannot be accessed by any NEAX2400 IPX feature.
4. A user can activate this feature at any time during a connection.
5. Data Privacy cannot be activated by an Attendant for a user.
6. This feature can be set for originating and terminating calls.
7. Data Privacy cannot prevent disruptions from interfering with data transmission when the disruption
occurs outside the NEAX2400 IPX.
8. This feature requires additional hardware.
9. Data Privacy cannot be set for ATTENDANT CONSOLE [A-3] by the user.
10. Data Privacy can be set only for the call in progress. If the station releases or activates CALL TRANSFER-
ALL CALLS [C-11] or EXCLUSIVE HOLD - D
term [E-4D], Data Privacy will be cancelled. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 49
Data Interface - Automatic Answer - PRI D-119
D-119  Data Interface - Automatic Answer - PRI
General Description
This feature enables incoming ISDN data calls to be answered automatically by a Data Module or Dterm/Data
Adapter.
Operating Procedure
To set DATA INTERFACE - AUTOMATIC ANSWER - PRI, select the Attribute Data Entry or change the switch
setting for Auto Answer.
The Dterm/Data Adapter can be set in two ways
1. Set the Dterm/Data Adapter for Auto Answer by changing the Terminal Attribute Data II:
a.) Press the DATA key. The DATA lamp lights steadily and the display shows D.
b.) Press the DTX key (or ANSWER key). The DTX lamp (or ANSWER lamp) lights steadily.
c.) The display shows DATA SET.
d.) Key in 00. The display shows ER CHECK XX YY. Press the # key.
e.) The display shows AUTO ANS 01 YY.
f.) Key in 01. The display shows AUTO ANS 01 01.
g.) Press the # key, and service set tone (two beeps) is heard. Press the DATA key.
h.) Auto Answer Setup is complete.
2. Set the D
term/Data Adapter for Auto Answer by pressing the DSPY/AUTO key:
a.) Press the DSPY/AUTO key. The DSPY/AUTO lamp lights steadily.
b.) Auto Answer Setup is complete.
Note:ER = DTR
To set the Data Module for Auto Answer using dip switch #SW-1 in the rear of the unit (Attribute Data Entry via
keyboard is ignored, switch settings override keyboard entry):
1. Set Sw1-2 to the OFF position; (SW1-2: ON=Manual Answer).
2. Reset the Data Module Power ON/OFF/ON.
In the Auto Answer mode, data communication can be started when the Data Module (DM) connected DTE display
shows INCOM DTE XXXX.
In the Auto Answer mode, data communication can be started when the D
term display shows:
and
(Time Display) D XXXX
DTE
(Time Display) READY XXXXD
DTE 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 50NDA-24311, Issue 1
D-119 Data Interface - Automatic Answer - PRI
Service Conditions
1. The Auto Answer feature for Data Adapters and Data Modules is affected by the Attribute Data and switch
settings pertaining to Equipment Ready (ER) Check.
a.) If you want the Data Module or Data Adapter to Auto Answer only when the attached DTE’s RS-
232C pin 20 (DCD) is ON (+ 12 volts), set ER Check - Necessary (normal setting).
b.) If you want the Data Module or Data Adapter to use Auto Answer without regard to the pin 20
signal from the attached DTE, set ER Check - Not Necessary. 
2. When entering Terminal Attribute Data, the ANSWER key can be used instead of the DTX key. 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 51
Data Transparency - PRI D-120
D-120  Data Transparency - PRI
General Description
This feature provides a completely transparent switched data path between two connected data terminals via PRI.
Operating Procedure
Establish a data call using the procedures described in the ASYNCHRONOUS DATA SWITCHING [A-24] and
SYNCHRONOUS DATA SWITCHING [S-29] feature descriptions.
When the data connection has been established, information transfer between the two connected DTEs is completely
transparent at speeds up to 9.6 kbps asynchronous and 56 kbps synchronous. The NEAX2400 IPX does not alter the
data in any manner.
Service Conditions
1. During data call origination and termination involving a Data Adapter or Data Module, certain character
string sequences are exchanged as part of the call setup process.
2. After the data connection is established, the Data Module awaits entry of the ESC character followed
immediately by -DM as a disconnect request from the DTE.
3. Data transparency does not imply speed and code conversion. If dissimilar devices cannot communicate
when connected directly to each other, they will not be able to communicate via the NEAX2400 IPX. 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 52NDA-24311, Issue 1
D-121 Data Communications - PRI
D-121 Data Communications - PRI
General Description
This feature enables data communication between two NEAX2400 IPX, through PRI over Digital Line Link
(ISDN). The ISDN link can be accessed through various connections.
Operating Procedure
Modem-to-Modem
The following figure illustrates a typical Modem-to-Modem connection.
Modem-to-Modem Connection
1. An analog telephone user with a modem dials a remote extension, which also has a modem.
2. The remote modem rings and is manually or automatically answered.
3. The remote modem returns answer tone (modem tone).
4. Both modems exchange carrier signals.
5. A data communications path is established.
ISDN Sync. or Async.
Modem
Analog
Station DTE16LCPRI
NEAX2400 IPXSync. or Async.
Modem
Analog
StationDTE 16LC PRI
NEAX2400 IPX 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 53
Data Communications - PRI D-121
Operating Procedure (cont’d)
Modem Pool to Modem Pool
Modem Pool-to-Modem Pool Connection
Asynchronous Data Terminal connected to a Data Module
1. Enter DM CALL  on the DTE keyboard; READY is returned.
2. Enter the number of the remote DTE: DIAL XXXXX .
3. CALLING is returned and the local modem pool is transferred to ISDN.
4. WAITING is displayed until the call is answered.
5. The remote Data Module or Data Adapter manually or automatically answers the data call, and the remote
modem pool is connected between the called station and the ISDN network.
6. OPEN is returned to the calling Data Module.
7. The remote modem pool sends answer tone.
8. Both modems exchange carrier signals.
9. Data transmission can begin.
10. To terminate the data call, enter -DM .
11. ACK is returned; enter RLS  to disconnect from the Data Module.
12. RELEASED is returned when the data path is disconnected.
Asynchronous Data Terminal connected to a Data Adapter via a Dterm
1. Press the VOICE line key to originate.
2. Dial the number of the terminal you want to call, XXXXXX.
3. XXX YY is displayed on the D
term and the LED of the VOICE key lights (XXX=trunk type, YY=trunk
number). For example, DDD 36.
4. The remote Data Module or Data Adapter manually or automatically answers the data call, and the remote
modem pool is transferred in between the called station and the ISDN channel.
5. The remote modem sends answer tone.
6. On receipt of the answer tone, the D
term user presses the DTX key.
7. WAIT D XXX YYY is displayed when the called terminal is idle (XXX=trunk type, YY=trunk number).
8. The local modem pool is transferred in between the D
term Data Adapter and the local PRI channel.
9. Both modems exchange carrier signals.
10. READY D XXX YY is displayed on calling D
term (XXX=trunk type, YY=trunk number).
11. Data transmission can begin.
DM or DA
(Async. Only)
Modem
Pool DTEPRI
NEAX2400 IPXISDN
DM or DA
(Async. Only)
Modem
PoolDTE PRI
NEAX2400 IPX 
						

							NEAX2400 IPX ISDN Features and Specifications
Page 54NDA-24311, Issue 1
D-121 Data Communications - PRI
Operating Procedure (cont’d)
Unrestricted Data
Asynchronous DTE to Data Module Connection
Asynchronous DTE connected to a Data Module
1. Enter DM CALL  on the DTE keyboard; READY is returned.
2. Enter the number of the remote DTE: DIAL XXXXX .
3. CALLING is returned.
4. WAITING is displayed until the call is answered.
5. OPEN is returned when the called DTE answers.
6. Data transmission can begin.
7. To terminate the data call, enter -DM .
8. ACK is returned; enter RLS  to disconnect from the Data Module.
9. RELEASED is returned when the data path is disconnected.
Asynchronous or Synchronous DTE connected to a Dterm/Data Adapter
(either a straight digital connection or a modem pool connection)
1. Press the DATA key to originate.
2. D appears on the LCD (D
term); the DATA key LED illuminates.
3. Dial the remote DTE number: XXXXX.
4. WAIT D DTE XXX YY (D
term) is displayed until the called terminal answers.
5. READY D DTE XXX YY is displayed when the called terminal answers.
6. Data transmission can begin.
7. Press the DATA key to disconnect.
8. The data path is disconnected; the LED of the DATA key switches off.
Sync. or Async.
DM or DA DTE
PRINEAX2400 IPX
DTE
PRISync. or Async.
DM or DA ISDN 
						

							NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 55
Data Communications - PRI D-121
Service Conditions
Modem and Modem Pool Calls
1. A total of eight modem pool groups may be assigned: eight incoming, eight outgoing, eight bothway, or
any combination thereof.
2. Modems must be compatible.
3. Modems in a modem pool may be permanently assigned, end-to-end, to a PRI channel on a dedicated line
basis; otherwise, modem pools are normally dynamically assigned on a switched basis to an incoming or
outgoing data caller on a PRI channel. In this case, the same PRI channels are available for voice also.
4. The maximum modem speed is 9600 bps. Both asynchronous and synchronous modems may be used in
the modem pool. Modems connected to analog extensions may be asynchronous or synchronous.
Unrestricted Data
1. The following communication speeds are supported:
Asynchronous: 50 ~ 9600 bps
Synchronous: 2.4K, 4.8K, 9.6K, and 48K bps
2. Attribute Data for remote AUTOMATIC ATTRIBUTE DATA RECOGNITION [A-40] will not be
passed over a digital link modem connections.
3. Pooled modems and modems connected to analog stations may be used on PRI channels when a straight
digital data connection is not required. With PRI, modem pooling will always be automatic when
accessing a PRI channel by setting the AMND command of the MAT to 0. If AMND is set to 1, the channel
will either use modem pooling or a straight digital path, depending on the number dialed. This number is
compared with the PRI link to the other end switch to determine if an analog or digital extension is being
called.
4. PRI requires one D-channel of a 24-channel digital line for out-of-band signaling. The other 23 channels
(B-channels) can be used for voice or data, or both.