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This MMC is used to changed trunk timer values. It is not advisable to change these
values, with exception of trunk flash time, without assistance from Technical Support.
The available options are and listed below:
DISPLAY DESCRIPTION RANGE
CLEARING The interval for reuse of trunk after disconnecting a call. 0~25sec
(clearing time)
CO SUPV C.O. checking 00~9000
(CO supervision time) msec
F DGT DLY After seizing a trunk line, system sends the first digit 1 0 0 ~ 2 5 0 0
(first digit delay time) after this time. ms
FLASH PBX The duration of a flash when connected to a C.O. 1 0 0 ~ 2 5 0 0
(PBX flash time) ms
MFS ON TM The duration of DTMF Sender 'ON' status when 1 0 0 ~ 2 5 0 0
(MF sender on time) sending DTMF signal. ms
MF OFF TM The interval of DTMF Sender 'OFF' when system 1 0 0 ~ 2 5 0 0
(MF sender off time) sends DTMF signal. ms
MPD DETCT The minimum duration of MPD signal when the 40~500
(MPD detect time) signal is incoming. msec
NEW CALL The duration of a flash sent to the central office to 100~9900
(New Call time) disconnect the line. ms
NO RING if an incoming call is detected and is disconnected without 1~25sec
(no ring time) call processing, the system and releases the C.O line.
PAUSE TM This is a dialing pause duration timer. A pause is an 1~25sec
(pause time) instruction for the system to wait.
RNG DETCT Must be set shorter than the 'ON' cycle of a C.O. ring to prevent 100~2500
(ring detect time) transient noise on the C.O. line from triggering a false ring. ms
NOTE : Seconds shown as 'sec', milliseconds as 'ms', and minutes as 'mi'.
PROCEDURE LCD DISPLAY
1. Press [TRSF/ALM] and dial 53
Display shows
2. Press [VOLUME (-) o r ( + ) ] to select a timer (e.g. CO SUPV)
3. Dial new time data(e.g. 0500)
4. Press [TRSF/ALM] to save and exit
DEFAULT DATA
CLEARING : 00 SEC CO SUPV : 0000 MSEC
F DGT DLY : 1000 MSEC FLASH PBX : 0600 MSEC
MFS ON TM : 0100 MSEC MF OFF TM : 0100 MSEC
MPD DETCT : 0060 MSEC NEW CALL : 2000 MS
NO RING : 05 SEC PAUSE TM : 03 SEC
RNG DETCT : 0200 MSEC
RELATED MMC NONE
NX-SERIES HYBRID KEY SYSTEM PROGRAMMING SECTION
MMC 53 TRUNK WIDE TIMER