3.3.1 Power Supply Unit
The Power Supply Unit (PSU) is installed in the cabinet of the OfficeServ 7200. The PSU supplies the power of -48 V DC received from the external power supply unit to each board. The rating is as follows.
RATING: AC 220~240 V, 6 A; 50/60 Hz or DC48 V 3 A
RATING: AC 100~120 V, 6 A; 50/60 Hz or DC48 V 3 A (for U.S.A)
Table 3.21 Power Specifications
-
Power Supply Unit (PSU)
|
Specification
|
PSU
|
Input power
|
AC 220~240 V (Other country)
AC 100~120 V (USA)
|
Output power
|
- DC -48 V, 2.2 A
- DC -5 V, 1.0 A
- DC +3.3 V, 10 A
- DC +5 V, 8.0 A
- DC +12 V, 0.4 A
- DC -54 V, 0.4 A (for backup)
|
External rectifier
(OfficeServ 7150)
|
Input power
|
AC 110~220 V (Free Volt)
|
Output power
|
DC -54 V, 15 A (Installed 2 Power unit, USA)
DC -54 V, 20 A (Installed 2 Power unit, Other country)
|
External Rectifier is an external power resource to supply the power to IP telephone and
SMT-R2000 connected the OfficeServ 7200 when using the PLIM.
External Battery Button
External Battery Socket
A
B
Red line
Blue line
External Rectifier
OfficeServ
7200
Because the internal power capacity is not enough, 48 V power source is supplied to the external equipment by connecting the supplementary power source.
Figure 3.2 External Rectifier
Installing an External Rectifier
For details concerning the installation of the external rectifier, refer to the ‘OfficeServ 7200 Installation Manual’.
3.4.1 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 a country and available to be modified by the software)
Table 3.22 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
|
Ring ON/OFF Cycle
The ON/OFF cycle can be adjusted by changing the values of the system database.
3.4.2 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)
75 Vrms External Sinewave (Italy, Australia)
Frequency: 20 or 25 Hz
The OfficeServ 7200 provides the users with various tones to notify the users of the status of functional operations and give feedback to the users. The ON/OFF cycles of currently specified tones are shown in the table next page:
3.4.3 Tones
Table 3.23 Cycles of the System Tones
-
Tone
|
ON/OFF Cycle
|
Dial tone
|
1000/250 ms
|
Busy Tone
|
500/500 ms
|
Do Not Disturb tone
|
250/250 ms
|
Ring Back tone
|
1000/2000 ms
|
Call Park tone
|
Continuous
|
Confirmation/Caution/Barge-In tone
|
50/50 ms
|
Call Back/Hold tone
|
500/3500 ms
|
Ring Back tone
|
1000/2000 ms
|
Error/Number Unobtainable tone
|
250/250 ms
|
Message Camp On tone
|
Continuous
|
Tone ON/OFF Cycle
The ON/OFF cycle can be adjusted by changing the values of the system database.
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