Access Bank I and II Access Bank I and II Access Exchange Access Exchange FXO/DPT 12-Channel Card Part Number: 740-0004 The FXO/DPT card is used by the Access Bank I, Access Bank II and Access Exchange platforms to extend support for PBX features such as call transfer, direct extension dialing, hunt groups and conferencing. Provide PBX features at remote locations The Foreign Exchange Office (FXO) and Dial Pulse Termination (DPT) 12-Channel Card sinks battery current and detects ringing voltage provided by a connected Central Office (CO) line or PBX extension. Thus, the FXO provides a method to transport dial tone signals to a remote location and extend support for PBX features such as call transfer, direct extension dialing, hunt groups and call conferencing. When configured as a DPT interface, the card sinks and detects both forward and reverse current, replicating the conditions from the remote CO Direct Inward Dial (DID) lines. DID service allows the dialed digits to ring a telephone extension directly without requiring a dedicated telephone line. Additionally, the DPT interface is useful in terminating Dialed Number Information Service (DNIS) for 800 numbers, allowing Automatic Call Distributors (ACDs) and Voice Mail Systems to provide information to the receiver that is specific to the 800 number dialed. Allows calling party supervision The FXO/DPT card supports proprietary 2-Wire Calling Party Disconnect (CPD) when used with an ® TM Access Bank /Access Exchange FXS card on the far end. This feature allows calling party supervision and prevents hung lines in PBX, IVR, and key systems. The card also converts FXO loop start (with reverse battery) to E&M immediate start, providing DPT functionality with ringing detection. This feature is frequently used when interfacing with many CTI-based applications. Features At-A-Glance: • Provides switch selectable FXO loop-start or ground-start for each channel • Supplies switch selectable DPT functionality • Supports DID and DNIS carrier services • Converts FXO loop-start to E&M immediate start • Displays call progress through channel status LEDs • Include three-mile range analog loop and full compatibility with V.34 modems • Provides fuseless overvoltage and overcurrent safety protection • Adapts to line conditions with patented automatic impedance balancing ® • Passes caller-ID and other CLASS services for line connections T echnical Specifications FXO Transmission Performance: FXO Signaling Performance: • Return loss: ERL > 28 dB, SRL > 20 dB with respect • DC loop range: 4000 Ω DC signaling to 900 Ω +2.16 µF • Ringer equivalency number (REN): 0,4B (AC) • Transhybrid loss: ERL > 28 dB, SRL > 20 dB with • Ringing voltage detection: Detects Class A and B respect to 900 Ω +2.16 µF ringing, follows distinctive ringing • Idle noise: A/D < 15 dBrnC0, D/A, 10 dBrnC0 • FXO DC resistance: 100 Ω effective with electronic • Crosstalk coupling: < 80 dB at 0 dBm0 hold • Signal/distortion: > 45 dB with 1004 Hz, 0 dBm0 • Maximum DC: 150 mA input • Control technique: Solid-state, no mechanical relays • Overload: +3.0 dBm/900 Ω • Overvoltage: 600 Vrms without fire hazard per UL • Frequency response: +0.25 dB, –1.0 dB from 300 to 1459, FCC Part 68 lighting protection 3400 Hz • Protection: Fuseless overvoltage and overcurrent • Encoding: µ-Law 255 as defined in CCITT G.712 protection • Terminating impedance: 900 Ω + 2.16 µF • Termination type: FXO loop-start or FXO ground-start, • Transmit gain/loss: 0 to –9 dB, switch selectable per switch selectable per channel channel • Signaling selection: DPT functionality enabled/disabled • Receive gain/loss: 0 to –9 dB, switch selectable per on all 12 channels channel • Address signaling: DTMF or dial pulse • Modem support: Full compatibility with V.34 and V.90 • Calling party disconnect: Detects and forwards current modems. Patented automatic analog impedance interruption to disconnect answering device and adjustment adapts to various modems and line lengths modems • Transmit TLP maximum: +6 dBm • Receive TLP maximum: +3 dBm Regulatory Approvals: • Longitudinal balance: Loop-start: 200 Hz to • FCC Part 68, CS-03 listed for connection to PSTN 1000 Hz ≥ 81 dB, 1000 Hz to 4000 Hz ≥ 70dB; • FCC Part 15, Class A Radiated Emissions Control • Ground-start: 200 Hz to 1000 Hz ≥ 73 dB, 100 Hz to • NRTL safety listed: UL 1459, CSA 4000 Hz ≥ 61 dB • National Electrical Code 1996 safety requirements Physical: • Dimensions: - 7.8 in. (H) x 13.6 in. (D) - 19.81 cm (H) x 34.54 cm (D) Environment: • Operational temperature: 32° to 122°F (0° to 50°C) • Relative humidity: 0% to 95% Product Ordering Information Inside Sales Representative: E-mail inside-sales@carrieraccess.com Phone 800-365-2593 Fax 303-218-5680 5395 Pearl Parkway Access Bank is a registered trademark and Access Exchange, Solve for X, and the Carrier Access logo are trademarks of Carrier Access Boulder, Colorado 80301 Corporation. All other trademarks are the property of their respective owners. All specifications and prices subject to change without notice. www.carrieraccess.com © Copyright 2001, Carrier Access Corporation. All rights reserved. 027-0066-1100 revision: May 2001