Expansion Slots: 4
Expansion Slot Options
Audio Expansion Boards (AEB): 8 ports each
Telephone Expansion Boards (FXO, FXS): 4 ports each
Radio Interface Board (RIB): 8 ports each
Mercury Voice Bridge (MVB): 8 ports each
Zero Form-Factor Options
Redundant Power Supply
Digital Audio
Frequency response: up to 25Hz to 7kHz (16kHz sampling)
Distortion: <0.05% when routed locally
Noise: < -60dB un-weighted
Common mode rejection ratio: >70dB
Absolute maximum input voltage: Common Mode ±15V / Differential ±28V
I/O Front:
(1) USB 2.0 Rear:
(1) USB 2.0, GPI - 16 via DB-25M, GPI - 16 via DB-25F PS2
Ports: 2 (keyboard and mouse)
SVGA Port: 1 rear (for monitor)
100Mbps Ethernet - Normal Mode: 2 RJ45 - combined voice and data traffic via internal switch
100Mbps Ethernet - Special Mode: 2 RJ45 - independent ports for voice and data traffic
Auxiliary Audio - Front: Mic level in via 3.5mm jack (-46dB) Headphone level out via 3.5mm jack (8.24dBu)
Auxiliary Audio - Rear: Line level in (8.24dBu) Line level out (2.22dBu)