NEC DSX Software Manual

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-
tem may inadvertently seize unstable lines. If too long, the system may not properly seize a valid line.
F
eatures
• None
IntraMail Features
• None
Options
• 4-1020 mS
Default
• 800 mS
1613-02: Far End Disconnect Timer
(Clear Signal)
Use this option to set the loop disconnect interval for outside calls. If the system detects a loop current inter-
ruption longer than this interval it assumes the telco has disconnected the line. It then returns the line to idle.
Set this interval for compatibility with the connected telco or PBX/Centrex. If you set the interval too short,
lines may not properly disconnect when the far end hangs up. If you set the interval too long, the system may
interpret momentary loop current interruptions as positive disconnect.
Features
• None
IntraMail Features
• None
Options
• 4-1020 mS
Default
• 300 mS

NEC DSX Specifications