E
N
3. Connect the handset and optional headset, as shown below:
G
L
I
S
H
Note:
The headset should be purchased separately.
4. Connect the optional USB ash drive, as shown below:
Note:
The USB port can also be used to connect color-screen expansion module EXP50 or USB headset. For more information
on how to use EXP50, refer to Yealink EXP50 User Guide. For more information on how to use USB headset, refer to the
documentation from the manufacturer.
5. Connect the AC power or PoE, as shown below:
Note: The IP phone should be used with Yealink original power adapter (5V/2A) only. The use of the third-party power adapter
may cause the damage to the phone.
2
D C 5 V
P C
I n t e r n e t
P C
A
AC Power Option
P C
B
PoE ( Power over
Ethernet ) Option
IEEE 802.3af compliant
PoE Hub/Switch
Power Adapter
(DC 5V)
D C 5 V
I n t e r n e t
D C 5 V
I n t e r n e t