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| Part Number | 740-0004 |
|---|---|
| Manufacturer | CARRIER ACCESS |
| Category | Channel Banks |
| Price | Request Quote |
| Lead Time | Request Quote |
Carrier Access 740-004 Channel Bank - 12-Channel expansion or replacement card for FXO or DPT interface applications.
Once you accept your quote and confirm your order, we prepare by retrieving related parts and components from our inventory. Anything we do not currently have in stock is sourced.
Upon receipt, all parts are visually inspected for damage and then photographed to document their condition. Parts acquired from vendors must meet our quality standards.
Industrial computer boards and other parts we are equipped to evaluate are tested to verify functionality and discover possible damage.
Industrial computer boards have all components with low MTBF numbers (such as capacitors and connectors) replaced and are washed in our PCB cleaner to remove dust and grime.
Industrial computer boards are fully diagnosed and repaired by our engineers. Logs of the problems encountered and solutions implemented are recorded.
Industrial computer boards have all I/O connections rigorously tested to ensure that everything is working properly before the board is certified as ready to ship.
After photos are taken to document the exterior condition of the part, it is packaged and sent to the customer. ESD-safe materials are used to protect sensitive equipment on its journey.
Industrial Trading is a website of GID Industrial, an ISO 9001:2015-certified company that has specialized in servicing industrial computer boards and providing other industrial products for sectors including manufacturing, defense, aerospace, entertainment, healthcare, and more by utilizing our combined skills and vast international network of trusted suppliers since our founding in 2015.
Do you need a 740-0004? We can help you find it at a competitive price!
| General | 19.81 cm (H) x 34.54 cm (D) Address signaling: DTMF or dial pulse Calling party disconnect: Detects and forwards current interruption to disconnect answering device and modems Control technique: Solid-state, no mechanical relays Crosstalk coupling: Encoding: µ-Law 255 as defined in CCITT G.712 Frequency response: +0.25 dB, –1.0 dB from 300 to 3400 Hz FXO DC resistance: 100 O effective with electronic hold Ground-start: 200 Hz to 1000 Hz = 73 dB, 100 Hz to Idle noise: A/D Longitudinal balance: Loop-start: 200 Hz to 1000 Hz = 81 dB, 1000 Hz to 4000 Hz = 70dB; Maximum DC: 150 mA Modem support: Full compatibility with V.34 and V.90 modems. Patented automatic analog impedance adjustment adapts to various modems and line lengths Overload: +3.0 dBm/900 O Overvoltage: 600 Vrms without fire hazard per UL 1459, FCC Part 68 lighting protection Protection: Fuseless overvoltage and overcurrent protection Receive gain/loss: 0 to –9 dB, switch selectable per channel Receive TLP maximum: +3 dBm Relative humidity: 0% to 95% Ringer equivalency number (REN): 0,4B (AC) Ringing voltage detection: Detects Class A and B ringing, follows distinctive ringing Signal/distortion: > 45 dB with 1004 Hz, 0 dBm0 input Signaling selection: DPT functionality enabled/disabled on all 12 channels Terminating impedance: 900 O + 2.16 µF Termination type: FXO loop-start or FXO ground-start, switch selectable per channel Transhybrid loss: ERL > 28 dB, SRL > 20 dB with respect to 900 O +2.16 µF Transmit gain/loss: 0 to –9 dB, switch selectable per channel Transmit TLP maximum: +6 dBm |
|---|---|
| Environment | Operational temperature: 32° to 122°F (0° to 50°C) |
| FXO Signaling Performance | DC loop range: 4000 O DC signaling |
| FXO Transmission Performance | Return loss: ERL > 28 dB, SRL > 20 dB with respect |
| Low Power Consumption | 48 VDC inputs and AC charger with economical eight-hour battery backup option |
| Physical | Dimensions: 7.8 in. (H) x 13.6 in. (D) |
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