Attachment_1-_NWR_Upgrade_IP_Audio_Encoder-De-coder_requirements_Version_1.5.docx

Attachment 1: NWR Upgrade IP Audio Encoder/De-coder requirements Ver 1.5

Minimum technical requirements for AOIP encoder/de-coder devices:

a) Support G711 u-law codec

b) Support RAW UDP protocol

c) Support RAW TCP protocol

d) Support QoS

· (DiffServ) via DSCP configuration

· DSCP encodings of EF (DSCP 46) and AF41 (DSCP 34)

e) Mono audio 8k sampling rate

f) DHCP and Static IP options

g) SNMP V2 or greater

h) RJ45 10/100 Ethernet interface

i) Audio Interface with 600ohm Impedance (encoder and de-coder)

j) Input audio Gain adjustment (encoder function)

k) Output volume adjustment (de-coder function)

l) Status light/s

m) Local audio monitor capability

n) Easy Webpage GUI setup

o) Adjustable 0ms to 3000ms Jitter buffer (de-coder function)

p) Auto failover to prerecorded audio file if audio stream is lost. Minimum 30 second recordable audio loop (decoder function)

Environmental requirements:

a) Temperature: 0° C to 50° C

b) Humidity: 10% to 90% Relative Humidity

c) Dust: Typical of light industrial areas.

d) Fungus: Typical of inland and coastal areas.

Other requirements:

a) 110VAC power supply included

b) Size not to exceed 1U height

c) Specialty programming cables included