Zhone Technologies, Inc. | IMACS Product Book, Version 4 |
|
|
Table
Subscriber and Central Office |
|
| |
Level generated to 2W port with 0dB loss | 0 dBm ± 0.5 Db |
Level adjustment | |
Attenuation distortion (relative to 1 kHz) | |
Idle channel noise | ≤ 23 dBrnC |
2W Port Characteristics |
|
Maximum connected copper loop | 3000 feet, 26 gauge, |
Impedance | 900 ohms |
Return Loss, voiceband into 900Ω + 2.16 ∝ F | > 18 dB ERL, > 0 dB SRL LO, HI |
Return loss, single frequency into 900Ω + 2.16 ∝ F | > 25.6 dB @ 8 kHz |
Sealing Current Source |
|
Minimum voltage at NI (display set) | 15.8 V into a 38 ma sink through 3000 ft |
Minimum voltage at NI | 14.5 V into a 17 mA sink through 3000 ft |
Loop length | 0 to 3000 feet |
Polarity | Ring lead must be negative relative to tip lead |
Sealing Current Sink | <960 ohms DC resistance |
8 kHz Signaling Specifications |
|
Signaling method | ASK half duplex, carrier only present during transmission of |
| information or acknowledgment |
Signaling rate | 1 kb/s, half duplex |
Received 8kHz signal levels at 2W port | .200 to 1.5 V peak to peak |
Standards Conformance |
|
BellCore GR | ESD Protection |
BellCore GR 1089 section 3 and EN 500 | Radiated Emissions |
| |
BellCore GR 1089 CORE, Section 3 | Conducted Emissions |
BellCore GR 1089 CORE, Section 3 | Immunity |
FCC Part 68 | Requirements for Connection of Terminal Equipment Systems |
| and Protective Apparatus to the Telephone Network |
FCC Part 15 | Subpart B |
UL 1459 | Standard for Safety, Telephone Equipment |
UL 1950 | UL Standard for Safety of Information Technology Equipment |
CE EN 500 | Electromagnetic compatibility generic emission standard Part 1 |
| Residential, commercial and light industry |
CE EN 500 | Electromagnetic compatibility generic immunity standard Part 1 |
| Residential, commercial and light industry |
CE EN 60 950/A2 | Safety of information technology equipment including electrical |
| business equipment |
March 2001 | Page 39 |
