About Your DSU
Table
V.32 DBM Technical Specifications
Specifications | Criteria |
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RINGER EQUIVALENCE NUMBER (REN) | DBM option 0.7B |
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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 |
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COMMUNICATION LINE | |
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DATA RATES | 2.4, 4.8, 9.6, 12, 14.4 kbps |
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DBM COMPATIBILITY | If Call Setup is set for Callback or Password security, then the device is |
| compatible with a Model 3550 or 3551 V.32 DBM. |
| 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 |
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RECEIVE VF INTERFACE |
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Dynamic Range |
|
V.32 | ±43 to ±10 dBm |
Impedance | 600 Ω |
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|
SWITCHED NETWORK INTERFACE |
|
3550 DSU | |
| Permissive: USOC RJ11C |
| |
| Programmable: USOC RJ45S |
3551 DSU | (One or two) |
| Permissive: USOC RJ21X |
| Programmable: USOC RJ27X |
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TRANSMIT VF INTERFACE |
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Signal Level |
|
V.32 | Permissive: ±9 dBm |
| Programmable: ±12 to 0 dBm (set by a resistor in the telco jack) |
Impedance | 600 Ω |
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|
December 1996 |