table 1
*N: in this condition (EPs quantity), the riser system power
supply cannot provide current to this kind of handset, an
additional power supply must be used.
*1: 2 small EP and 1 EP can work at the same time with
handsets connected to the same power supply
*2: 1 small EP and 1 EP can work at the same time with
handsets connected to the same power supply
The information of table is 5 based on below condition
1. 50 m cable from Floor shunt to handset and 5m cable
between floors.
2. 0.5 m cable between Floor shunt and Floor shunt in same
floor for the projects with more than one floor shunt on
each floor.
3. Between Power supply and 1st Floor shunt or riser shunt,
for the connection use 2 wire cables.
4. Type of door lock release for EP is DC12 V/1 A., release
time 100 ms or less. The door lock does not need power
during.
5. When using an entrance panel video mixer in the riser
(more than one EP in the riser), the distance between
entrance panel video mixer and riser shunt is 0.5 m.
6. The data listed in above table are the requirements
based on 4 apartments per floor. For example: if riser
use type of handset, and there is only one EP without
a/C, then we could found that this system power supply
can afford other 40 handsets except EP and riser shunt
according to above table. But these 40 handsets need
to be arranged as 4 apartments per floor. if the height
of each floor is 5 m, the height limit should be applied at
the same time, which means (40/4- 1)*5=45 m
7. If the riser EP get power from an auxiliary power supply,
the riser system power supply only provide power to
riser shunt, the Floor shunt and the handsets.
Maximum distance between EP or handset and power supply.
In the riser, the quantity of devices managed by a power supply are shown in table 4, table 5, and table 6.
Case 1, case 2, case 3, case 4, case 7, case 8, case 9 are for 323005(PW1) and 323010(aPW1). Case 4, case 5, case 6, case 10, case
11, case 12 are for 323005(PW1)
Notes:
1. The current can also be affected by the distance. Here every floor is supposed to be 5 m height.
2. If there are many 323002, it is supposed that the distance of 323002is 0.5 m.
Table 4: Case 1 to Case 4, the quantity of devices managed by 323005(PW1)
How many apartments on every oor
HANDSET
Case 1 Case 2 Case 3 Case 4
Total Qty of
handsets
Floor limit
Total Qty of
handsets
Floor limit Total Qty of handsets Floor limit
Total Qty of
handsets
Floor limit
2 apartments/oor
(Don’t use extra power cable)
24 max: 12 floors 4 max: 2 floors 16 max: 8 floors 10[*1] max: 5 floors
2 apartments/oor
(use extra power cable)
78 max: 39 floors - - 16 max: 8 floors 20[*1] max: 10 floors
4 apartments/oor
40 max: 10 floors 4 max: 1 floor 16 max: 4 floors 12[*1] max: 3 floors
8 apartments/oor
56 max: 7 floors 4 max: 1 floor 16 max: 2 floors 12[*1] max: 2 floors
12 apartments/oor
56 max: 5 floors 4 max: 1 floor 16 max: 2 floors 12[*1] max: 1 floor
16 apartments/oor
56 max: 4 floors 4 max: 1 floor 16 max: 1 floor 16[*1] max: 1 floor
20 apartments/oor
68 max: 4 floors 4 max: 1 floor 16 max: 1 floor 20[*1] max: 1 floor
24 apartments/oor
68 max: 3 floors 4 max: 1 floor 16 max: 1 floor 20[*1] max: 1 floor
28 apartments/oor
68 max: 3 floors 4 max:1 floor 16 max: 1 floor 20[*1] max: 1 floor
32 apartments/oor
68 max: 3 floors 4 max:1 floor 16 max: 1 floor 20[*1] max: 1 floor
36 apartments/oor
68 max: 2 floors 4 max:1 floor 16 max: 1 floor 20[*1] max: 1 floor
Power supply check and calculation
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