9 Specifications
General
Interface for connecting ISDN BRI (S0) or POTS telephone lines to professional studio
equipment.
ISDN Connectivity
(also available with POTS interfaces)
Protocol Compatibility:
• National ISDN-1 and 2
• DMS-100 “Custom Functional”
• AT&T 5ESS “Custom Point-to-Point”
• Euro ISDN conforming to the NET 3/ETS300 protocol.
Interface:
• USA & Canada; integral NT1 for direct connection to ISDN line via the 2-wire U
interface (6-position 2-pin [pins 3 & 4] miniature modular connector, i.e. RJ-11
style);2B1Q line coding.
• Worldwide (except USA & Canada); 4-wire S interface (8-position 8-pin miniature
modular connector, i.e. RJ-45 style)
Telephone Coding Modes
• Call processing; G.711 standard
• Compression; µLaw (Telco set to Natl I-1, AT&T Cust, or DMS Cust) or A-Law (Telco
set to ETS-300). 300-3,400Hz.
Audio Specifications
Send Input (Analog)
XLR female, pin 2 high. Active balanced, with RF protection.
Input level; Adjustable, -7 to +8 dBu (nominal) level.
Headroom before clipping; +13
Bridging, >100KΩ impedance.
Analog-to-digital converter resolution; 20 bits
Receive Output (Analog)
XLR male active differential. Pin 2 high.
Output level; adjustable from –7 to +8 dBu (nominal)
Clip point; +21dBu
Output impedance; <60Ω X 2
To Next Page
Loading...