PHYSICAL CONNECTIONS
Analogue Audio
The audio interface presents balanced stereo XLR
inputs and outputs. The electrical characteristics of
these connections is detailed below :-
I/P Impedance >10K Ohms
I/P Level +12dBu / +18dBu Max.
I/P Connectors Balanced XLR Female
O/P Impedance <100 Ohms
O/P Level +12dBu / +18dBu Max.
O/P Connectors Balanced XLR Male
Compression Ratio apt-x100 4:1 Fixed
Coding Algorithms
apt-X100 Sub-band ADPCM,
G722 (Stat Mode)
S/N Ratio >102dBm
Format Mono / Stereo
Bandwidth 3Hz to 22.5KHz
Sampling Rate 48KHz
Digital Audio
The digital audio interface provides both transmit
and receive AES3 connectivity via XLR input and
output connectors. Sample rate conversion is
standard on both input and output digital audio
signal paths. This facility allows the user to connect
AES3 signal sources that are asynchronous to the
codecs network interface.
The electrical characteristics of these connections is
detailed below :-
I/P Connector Balanced XLR Female
O/P Connector Balanced XLR Male
Compression Ratio Linear
Coding Algorithms L24, L16
Sampling Rate 48KHz
LAN Port
1 x RJ45 Connector supporting:
100BASE-TX full-duplex
100BASE-TX half-duplex
10BASE-TX full-duplex
10BASE-TX half-duplex
IP Port (ISDN 3-4)
IP Interface
100B-TX full-duplex
100B-TX half-duplex
10B-TX full-duplex
10B-TX half-duplex
Unicast / Simulcast
IP Audio Algorithm LINEAR PCM, APTX, G.722
IP Audio FS 8KHz to 48KHz
IP Connector RJ45
X.21 Port
The electrical characteristics and the pin out of the
connector is detailed below:-
X.21 Type Fixed DTE
X.21 Speed 64Kbps to 384Kbps
X.21 Signals C, I, TXD, RXD, CLK
X.21 Connector 15-way Dsub Female
PIN SIGNAL
1 Protect GND
2 T(a)
3 C(a)
4 R(a)
5 I(a)
6 S(a)
7 N/C
8 Signal GND
9 T(b)
10 C(b)
11 R(b)
12 I(b)
13 S(b)
INSTALLATION NOTE: The user is advised to ensure the
DCE connector of the X.21 cable is terminated correctly.
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