No

Item

Value

Remarks

1

Work frequency 

GSM 900/1800MHZ

or 850/1900MHZ

or GSM 850/900/1800/1900MHZ

International Standardization of GSM Digital Mobile Network

2

Power

≤2 W

3

Sensitivity

-104dB

4

Power Consumption

Static ≤25mA,

Transmit≤600mA

5

Ambient noise

≤60dB

6

Antenna gain

5dB (omni antenna),

12dB(directional antenna)

7

Interface standard

RJ11phone jack;

SMA antenna interface.

8

SLIC parameter

Return loss: >24dB

Weighted Noise: Representative value -75dB

9

Ringing current voltage

Representative value 90VP-P

10

Feed Current

23mA-35mA

11

On-hook voltage

48V

12

Max Loop resistance

1000Ω

13

Dial tone frequency

450Hz continuous

14

Busy tone frequency

450Hz 0.35s/0.35s

15

Power Supply

DC 12V(adapter AC 110~240 input)

16

DTMF Receive

> -23dB insure receiving

17

DTMF Receive sensitivity

>99.99%

18

Insertion loss

≤0.5dB