Paradyne 3616, 3615 manual Technical Specifications, Switched 56 DBMs

About Your DualFlow DSU

Switched 56 DBMs

The Switched 56 DBM is attached to the DSU and offers dial backup capability through the Switched

56 kbps digital service. The Switched 56 DBM offers the following features:

•Nondisruptive point-to-point connections. The DBM sends its line data to the EIA-232 port, which is not used for DDS data. DBM and DDS connections can be active at the same time.

•Independent operation. Although the DSU and Switched 56 DBM are functionally integrated, they are configured separately and can run most tests independently (e.g., you can run a test on the DBM while a test is running on the DSU).

•Network compatibility. The Switched 56 DBM, either the 2-wire or 4-wire version, provides service over compatible Switched 56 kbps switched services, such as AT&T's ACCUNETr Switched

56 kbps Service, MCI's 56 kbps Switched Digital Service, Northern Telecom's DataPatht service, and US SPRINT's VPN56 using either dedicated

2-wire or 4-wire access, or local exchange carrier 2-wire or 4-wire switched access. This DBM operates at 56 kbps full-duplex, and uses proprietary rate adaption to support data rates of less than 56 kbps.

•Security. The Switched 56 DBM offers four levels of call setup security: None, Password, Callback, and Alarm. Alarm allows the DBM to only answer incoming calls when there is a Facility Alarm on the DDS line.

•DTR control setup. When configured for DTR call control (DTRCallCon: Orig) backup, the DSU-DBM initiates dial backup when the DTE raises data terminal ready (DTR) to the DSU-DBM.

•Management control. Dial backup functions can be controlled from a 6700 or 6800 Series NMS, the DSU's DCP, or automatically by the DSU-DBM.

•Rate Adaption. With this feature, the DSU-DBM can adapt its data rate to a low-speed application while operating over a higher speed switched circuit.

•Port Async/Sync. The port asynchronous-to- synchronous feature makes it possible to send asynchronous data over the synchronous network.

•Nondisruptive Diagnostics. When set up to use nondisruptive diagnostics, the local DSU-DBM sends diagnostic data over the dial connection without interrupting or disrupting customer data.

•Full tributary diagnostics. The DSU-DBM supports a full complement of diagnostic tests and commands when a call is established on a backup line. Diagnostics can be addressed to and sent to tributaries from a 6700 or 6800 Series NMS workstation, or from the DCP of a control DSU.

Technical Specifications

Tables 1-1 through 1-5 list the technical specifications for the following:

•General specifications that apply to all DualFlow DSUs, regardless of the type of DBM installed (Table 1-1)

•Specifications for the Model 3615 and 3616 DSU only (Table 1-2)

•Specifications for the V.32 DBM (Table 1-3)

•Specifications for the 4-Wire Switched 56 DBM (Table 1-4)

•Specifications for the 2-Wire Switched 56 DBM (Table 1-5)

3615-A2-GB20-20 December 1996 1-3