*This the maximum distance a door phone can be from the DPIM.The DPIM can be up to 900 cable feet from the
KSU.The total distance must not exceed 1230 feet.
3.5 RINGS AND TONES
3.5.1 RING CYCLES
The OfficeServ 7200 provides the trunk line rings, station rings, door rings, and alarm rings.The ON/OFF cycle of
each ring is shown in the table below (it is different according to the country,and can be modified by MMC pro-
gramming).
Note:The ON/OFF cycle can be adjusted by changing the values of the system database.
3.5.2 RING
The output voltage and frequency of the ring signals in the OfficeServ 7200 are as follows:
• Output voltage:75 Vrms Square Wave (Built in SLI)
• Frequency: 20 or 25 Hz
The OfficeServ 7200 provides the users with various tones to notify the users of the status of functional opera-
tions.The ON/OFF cycles of currently specified tones are shown in the table on the next page.
3.3
3.4 CABLE REQUIREMENTS
EQUIPMENT CABLE AWG MAX FEET MAX METERS
DIGITAL KEYSET 1 PR.TWISTED 24 1300 400
ADD-ON MODULE 1 PR.TWISTED 24 1300 400
SINGLE LINE STATION 1 PR.TWISTED 24 3000 1 KM
DOOR PHONE 2 PR.TWISTED 24 330* 100
3.5.1a SYSTEM RING CYCLES
RING ON/OFF CYCLE
TRUNK LINE RING 1000/2000 ms
STATION RING 400/200/400/3000 ms
DOOR RING 400/200/400/200/400/2000 ms
ALARM RING 400/200/400/200/400/200/400/1000 ms
