Type of Switching 

PCM/TDM, Digital Switching, 100% Non-blocking

Processor

16-bit DSP

Signaling

Loop Start

Dialing

DTMF and Pulse (10/20PPS)

Off-Hook AC Impedance

600/900/Complex

Off-Hook Current

39mA Max.

Loop Limit

1800Ω Max (Excluding Telephone)

On-Hook Voltage (Tip/Ring)

-48V nominal

DTMF detection

ITU-T Q.24

Return Loss

>18dB

Longitudinal Balance

>50dB

Transmission Level Adjust 

Tx Gain: -12dB to +6dB, Rx Gain: -12dB to +6dB

Ringing

Trapezoidal 50VRMS/25Hz and Sinusoidal 52VRMS/25Hz

REN

3

CLI Presentation

DTMF, FSK ITU-T V.23 and FSK Bellcore 202

Protection

Over Voltage Secondary Protection

Physical Connector

2.54mm Push Type connector

CO (Central Office)/Two-Wire Trunk (TWT)

Signaling

Loop Start

Loop Limit

1200Ω

Off-Hook AC Impedance

600/900/Complex

Pulse Dialling 

10/20 PPS

DTMF Dialling and Reception

ITU-T Q.23 and Q.24

Return Loss 

>18dB

Longitudinal Balance

>50dB

Transmission Level Adjust

Tx Gain: -15dB to +10dB. Rx Gain: -15dB to + 10dB

CLI Reception 

DTMF, FSK ITU-T V.23 and FSK Bellcore 202

Call Maturity 

Delay and Polarity Reversal

Protection 

Over Voltage and Over Current Secondary Protection

Physical Connector 

Over Voltage Secondary Protection

Physical Connector

2.54mm Push Type connector

Input

External Adapter 12V@2A for VISIONPRO 206, 308, 412

Dimensions (WxHxD)

23.1×16.25×5.5cm (10.5″x11.2″x3.1″)

Unit Weight

0.65 kg (1.43lbs)

Shipping Weight 

3.5 kg (7.7lbs)

Installation 

Wall Mount

Operating Temperature

0°C to 45 °C (+32°F to +122°F)

Operating Humidity 

95% RH, Non-Condensing