9
A member of the Olancha Group Ltd
Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
fax
email
web
+44(0)118 976 9014
+44(0)118 976 9020
www.siretta.co.uk
inspired wireless technology
Power Supply Requirements
The DC power supply must be connected to the power input.
Table 1.
Characteristics of power inputs
The module is supplied with a 12V mains adaptor. It can also be powered from an
alternative power source with a voltage range, as shown in
table 1
above.
Input power protection :
»
On board voltage reverse polarity protection
»
Overvoltage spike protection to 70V for 1mS.
»
ESD protection to +/-4KV contact discharge and +/-8KV air discharge.
ZOOM-EVK
Input voltage
5 to 42V
Recommended input voltage
12V DC
Supply current:
Peak (20ms at registration)
2A
Average standby
25mA
Call in progress
250mA
Ringing
250mA
PIN
PIN Name
Pin Description
ZOOM-EVK
1
POWER +Vcc ZOOM POWER Vcc (12V nominal)
2
N/C
Not connected
3
N/C
Not connected
4
N/C
Not connected
5
N/C
Not connected
6
GND
ZOOM GND
Common GND connection (0v)
Table 2.
Power connector pin functions
Figure 5.
Power connector
Pin 1
Pin 6
