2. N畛i dung tr狸nh by
Kh叩i
ni畛m
PoE l g狸?
C叩c chu畉n v t棚n g畛i th動畛ng g畉p
C叩c lo畉i
thi畉t b畛
c畛a
VolkTek
C叩c t鱈nh nng v c叩ch 畛ng d畛ng
C叩ch l畛a ch畛n thi畉t b畛
C叩c l畛i th動畛ng g畉p v nguy棚n nh但n
M担 h狸nh
gi畉i ph叩p
C叩c m担 h狸nh 達 tri畛n khai th畛c t畉
M畛t s畛 th担ng tin ki畛m tra th畛c t畉
3. PoE l g狸?
PoE: L vi畉t t畉t c畛a gi畉i ph叩p Power over Ethernet - c畉p
ngu畛n qua d但y m畉ng ethernet (CAT5e, CAT6)
G畛m: PSE Thi畉t b畛 c畉p ngu畛n v PDs Thi畉t b畛 s畛
d畛ng ngu畛n
PSE PDs
Wi-Fi
Access
Point
CISCO IP PHONE
7905 SERIES
1 2
A B C
3
D E F
4 5
J K L
6
M N OG H I
7 8
T U V
9
W X Y ZP Q R S
* 0 #
4
7
PQRS
*
PoE
Printer
Server
PoE
IP-Cam
PoE
IP-Phone
5. PoE v PoE+
Property IEEE 802.3af (PoE) IEEE 802.3at (PoE+)
Power Available at PD
(C担ng su畉t t畉i 畉u cu畛i)
12.95 W 25.50 W
Maximum Power delivered by PSE
(C担ng su畉t t畛i a t畉i ngu畛n ph叩t)
15.40 W 30.00 W
Voltage range (at PSE)
(Hi畛u i畛n th畉 t畉i ngu畛n ph叩t)
44.057.0 V 50.057.0 V
Voltage range (at PD)
(Hi畛u i畛n th畉 t畉i 畉u cu畛i)
37.057.0 V 42.557.0 V
Twisted Pair Used
(担i d但y truy畛n)
2-Pair 2-Pair
Supported cabling
(Chu畉n c叩p h畛 tr畛)
Cat 3/5/5e/6 Cat 5/5e/6
18. T鱈nh nng v 叩p d畛ng
B畉o v畛 thi畉t b畛 kh担ng b畛 qu叩
ngu畛n
畉m b畉o ngu畛n cho c叩c
thi畉t b畛 quan tr畛ng
Ti畉t ki畛m i畛n v tng
c動畛ng tu畛i th畛 thi畉t b畛
Per Port PoE Power Limit (Gi畛i h畉n c担ng su畉t cho
port) v PoE Power feeding priority (働u ti棚n c畉p
ngu畛n cho c叩c thi畉t b畛 quan tr畛ng)
19. T鱈nh nng v 叩p d畛ng
PoE Power delay (c畉p ngu畛n tu畉n t畛 cho c叩c thi畉t b畛):
B畉o v畛 thi畉t b畛 v Switch
kh担ng b畛 t狸nh tr畉ng tng
叩p 畛t ng畛t
Gi畉m thi畛u chi ph鱈 b畉o tr狸
v thay th畉 thi畉t b畛
20. Switch C担ng Nghi畛p
S畛 d畛ng trong c叩c m担i tr動畛ng 畉c bi畛t:
Nhi畛u i畛n t畛, nhi畛u rung 畛ng, nhi畛t 畛 ho畉t 畛ng qu叩 cao
ho畉c qu叩 th畉p,
Y棚u c畉u 畛 畛n 畛nh v t鱈nh li棚n t畛c cao
21. T鱈nh nng v 叩p d畛ng
Ph畉m vi nhi畛t 畛 ho畉t 畛ng l畛n
35. Ki畛m tra th担ng s畛 thi畉t b畛
Thi畉t b畛 c畉p ngu畛n:
H畛 tr畛 nh畛ng chu畉n PoE no (802.3 af/at ho畉c kh叩c)
S畛 port
C担ng su畉t ph叩t t畛i a
Ho畉t 畛ng 畛 ch畉 畛 mode A (EndSpan) hay mode B (MidSpan)
C担ng ngh畛 v t鱈nh nng kh叩c ngoi PoE
36. Ki畛m tra th担ng s畛 thi畉t b畛
T鱈nh nng PoE N9 P1090 P2261 NSH
1408P
NSH
3410P
NSH
3428P
H達ng SX ToToLink DrayTek DrayTek VolkTek VolkTek VolkTek
Port h畛 tr畛 PoE 1 X 100Mbps 8 x 1G 24 x 1G 8 x 1G 8 x 1G 24 x 1G
Port quang uplink - - 2 x 1G - 2 x 1G 4 x 1G
H畛 tr畛 chu畉n PoE AF / AT
AF (4 ports)
AT (4 ports)
AF / AT
AF (4 ports)
AT (4 ports)
AF / AT AF / AT
T畛ng c担ng su畉t 25W 130W 185W 130W 125W 370W
C担ng su畉t m畛i port 25W 15W / 30W 30W 15W / 30W 30W 30W
L畉p l畛ch PoE - - OK - OK OK
Ki畛m tra t狸nh tr畉ng online - - OK - OK OK
Gi畛i h畉n c担ng su畉t - - OK - OK OK
働u ti棚n c畉p ngu畛n - - OK - OK OK
C畉p ngu畛n tu畉n t畛 - - OK - OK OK
H畛 tr畛 qu畉n l箪 - - OK - OK OK