NEC Dsx 34b Manual

16xx-Timers
160x-Feature Timers
1605-Control Timers
DSX Software ManualSystem Options: 1001-1702◆681
System
1001-1702
1605-04: Forced Program Exit Timer
(Program Exit)
Use this option to set the Forced Program Exit timer. If a telephone in the programming mode is inactive longer 
than this interval, the system automatically cancels the programming mode and makes the telephone idle.
Features
• None
Intr
aMail Features
• None
Options
•1-9999 seconds
•
0 for disabled
Default
•120 seconds
1605-05: Backlight...

16xx-Timers
161x-COI (Analog Line) Timers
1611-Incoming
682◆System Options: 1001-1702 DSX Software Manual
161x-COI (Analog Line) Timers
1611-Incoming
Description
Use this program to adjust timers that affect incoming calls on the line (COIU) PCBs.
Options
1611-01: Minimum Ring Detect Timer
(Ring Detect)
Use this option to set the threshold for ring detection. If the ring sig\
nal is longer than this interval, the system 
interprets the signal as valid ringing. If the signal is equal to or shorter than...

16xx-Timers
161x-COI (Analog Line) Timers
1611-Incoming
DSX Software ManualSystem Options: 1001-1702◆683
System
1001-1702
1611-03: Minimum Double Ring Detection Off Timer
(Double Ring Min)
The system uses this option to detect valid double ring from the connected PBX. Valid double ring must be 
longer than this interval.
F
eatures
• None
Intr
aMail Features
• None
Options
•8-2040 mS
Default
•288 mS 

16xx-Timers
161x-COI (Analog Line) Timers
1611-Incoming
684◆System Options: 1001-1702 DSX Software Manual
1611-04: Maximum Double Ring Detection Off Timer
(Double Ring Max)
The system uses this option to detect valid double ring from the connected PBX. Valid double ring must be 
less than this interval.
F
eatures
• None
Intr
aMail Features
• None
Options
•8-2040 mS
Default
•576 mS
1611-05: Ringing Signal End Detection Timer
(Ring Stop)
Use this option to set the Ringing Signal End Detection time. If the...

16xx-Timers
161x-COI (Analog Line) Timers
1612-Outgoing
DSX Software ManualSystem Options: 1001-1702◆685
System
1001-1702
1612-Outgoing
Description
Use this program to adjust timers that affect outgoing calls on the line (COIU) PCBs.
Options
1612-01: DP Break Timer
(Break Time)
Use this timer to set the duration of the Dial Pulse Break signal (i.e.\
, relay open). This is the “off” time in a 
Dial Pulse digit. Set this timer for compatibility with the connected te\
lco or PBX/Centrex. Keep in mind that...

16xx-Timers
161x-COI (Analog Line) Timers
1612-Outgoing
686◆System Options: 1001-1702 DSX Software Manual
Options
•100-9999 mS
Default
•800 mS
1612-04: PBX/Centrex Flash Timer
(Flash 1 Time)
Use this timer to set the Flash interval. When a user  flashes a line (manually or in a Speed Dial number), the 
system opens the line circuit for this interval. For accurate  flash function, be sure to set this interval for com-
patibility with the connected telco or PBX/Centrex. If you set this interval too short,...

16xx-Timers
161x-COI (Analog Line) Timers
1612-Outgoing
DSX Software ManualSystem Options: 1001-1702◆687
System
1001-1702
1612-07: Shunt Pause Timer
(Shunt Pause)
Use this option to set the Shunt Pause Timer (Dial Pulse Mute Timer) for the ATRU PCB. While dial pulsing 
or doing a Flash, the ATRU PCB switches a low resistance shunt across tip and ring to maintain the correct 
impedance on the line. When dialing or  flashing is complete, the ATRU PCB waits this interval before 
releasing the shunt.
This...

16xx-Timers
161x-COI (Analog Line) Timers
1613-Loop Control
688◆System Options: 1001-1702 DSX Software Manual
1613-Loop Control 
Description
Use this program to adjust timers that affect the loop on the line (COIU) PCBs.
Options
1613-01: Loop Current Detection Timer
(Loop Detect)
For loop start lines, loop current must be present for this interval before the system seizes the line. Set this 
interval for compatibility with the connected telco or PBX/Centrex. If you set this interval too short, the sys-...

16xx-Timers
161x-COI (Analog Line) Timers
1613-Loop Control
DSX Software ManualSystem Options: 1001-1702◆689
System
1001-1702
1613-03: Power Failure Recovery Detect Timer
(Loop Recovery)
Use this option to set the Power Failure Recovery Detect time. When the ATRU or COIU PCB recovers from 
a power failure, it checks the power failure line for loop current for this interval. If loop current is detected, it 
assumes the power failure telephone is still connected and does not tear down the call. If loop...

16xx-Timers
162x-SLI (Analog Single Line) Timers
1621-Incoming
690◆System Options: 1001-1702 DSX Software Manual
162x-SLI (Analog Single Line) Timers
1621-Incoming
Description
Use this program to adjust the timers that affect incoming calls to analog single line telephones.
Options
1621-01: Minimum DP Break Timer
(Minimum Break)
Use this option to define the minimum amount of time the loop must be opened to properly decode\
 the dial 
pulse digits sent from analog devices connected to single line PCBs....