COMSPHERE DualFlow Data Service Units
Table
V.32 DBM Technical Specifications
Specifications | Criteria |
|
|
RINGER EQUIVALENCE NUMBER (REN) | DBM option 0.7B |
|
|
APPLICATION | Full- or |
| |
MODULATION AND FREQUENCY | At 14.4 and 12 kbps: CCITT V.32bis, 1800 Hz |
| At 4.8 and 9.6 kbps: CCITT V.32, 1800 Hz |
| At 2.4 kbps: CCITT V.22bis, 2400 Hz |
|
|
COMMUNICATION LINE | |
|
|
PORT RATES | Async or Sync rates: 14.4, 12.0, 9.6, 9.2, 8.4, 7.2, 4.8, 4.4, 4.0, 2.4, 2.0, |
| and 1.2 kbps |
| Other asynchronous rates (e.g., 150, 300, 600, and 1800 bps) can be |
| obtained through oversampling |
| Asynchronous rates support CCITT V.14 extended rate range at |
| 8 to 12 bits per character, including the start and stop bit (+2.3, ±2.5 |
| percent overspeed/underspeed compensation at 10 bits per character) |
|
|
DATA RATES | 2.4, 4.8, 9.6, 12, 14.4 kbps |
|
|
DBM COMPATIBILITY | If Call Setup is set for Callback or Password security, then the device is |
| compatible with a 3600 Series V.32 DBM only. |
| If Call Setup is set for Alarm or None, then any V.32 modem can be |
| used. |
| Also, V.22bis at 2.4 kbps can be used. |
|
|
APPROVALS |
|
DOC |
|
Certification (PSTN) | 230 3684 A |
Load Number | 7 |
|
|
RECEIVE VF INTERFACE |
|
Dynamic Range |
|
V.32 | ±43 to ±10 dBm |
Impedance | 600 Ω |
|
|
SWITCHED NETWORK INTERFACE |
|
3615 DualFlow DSU | |
| Permissive: USOC RJ11C |
| |
| Programmable: USOC RJ45S |
3616 DualFlow DSU | (One or two) |
| Permissive: USOC RJ21X |
| Programmable: USOC RJ27X |
|
|
TRANSMIT VF INTERFACE |
|
Signal Level |
|
V.32 | Permissive: ±9 dBm |
| Programmable: ±12 to 0 dBm (set by a resistor in the telco jack) |
Impedance | 600 Ω |
|
|
December 1996 |
