Description

The Lucent Technologies Microelectronics Group TMPR28051 device is designed to map any valid combination of DS1 and E1 signals into a stream at a rate of 51.84 Mbits/s. This device provides all of the functions necessary to insert and drop any valid combination up to 28 asynchronous DS1 signals or 21 asynchronous E1 signals into an SPE.

Features

■ Maps signals in one of the following ways:

— Maps up to 28 asynchronous DS1 signals to SONET STS-1 via VT Groups, or SDH AU-3 via TUG-2.

— Maps up to 21 asynchronous E1 signals to SDH AU-3 via TUG-2, or SONET STS-1 via VT Groups.

— Maps any valid combination of DS1/E1 signals at the VT Group/TUG-2 level.

■ PLL-free receive operation using built-in digital jitter attenuators.

■ High-speed microprocessor interface configurable to operate with most commercial microprocessors.

■ Inserts valid B1, B2, and B3 bit interleaved parity (BIP) in the transmit direction.

■ Detects and counts B1, B2, and B3 BIP-8 errors on either a bit or block basis for performance monitoring in the receive direction.

■ Detects and counts V5 BIP-2 errors on either a bit or block basis for performance monitoring.

■ Configurable continuous B1, B2, B3, and V5 BIP-2 error insertion.

■ Configurable remote error indication (REI) insertion for B2, B3, and V5 BIP-2 errors.

■ Detects and counts remote errors.

■ Built-in test pattern insertion and drop for setup and maintenance.

■ Configurable VT1.5/TU-11 slot selection for DS1 insertion and drop.

■ Configurable VT2/TU-12 slot selection for E1 insertion and drop.

■ Detects STS-1 path loss of pointer (LOP-P), loss of H4 multiframe (H4LOMF), path alarm indication signal (AIS-P), and path remote defect indication (RDI-P).

■ Automatic receive monitor functions include VT/TU remote defect indication (RDI-V), VT/TU remote error indication (REI-V), BIP-2 errors, VT/TU AIS (AIS-V), and VT/TU loss of pointer (LOP-V).

■ Automatic receive monitoring functions can be configured to provide an interrupt to the control system, or the device can be operated in a polled mode.

■ User configurable for VT/TU label, AIS-V, RDI-V, REI-V, force BIP-2 errors, or unequipped tributary insertion.

■ Typical 3.3 V operation with 5 V TTL tolerant I/O and boundary scan.

■ –40 °C to +85 °C temperature range.

■ 208-pin shrink quad flat pack (SQFP) package.

■ Provides alarm and control features to easily

implement the latest release of the following standards:

GR253-CORE (12/97 with the exception of

GR-253 section 6.2.1.1.8.C), G.707 (3/96),

G.783 (1/94), G.823.393, T1.105-1995,

T1.105.02-1995, T1.105.03-1994,

T1.105.03A-1995, T1.105.07-1996,

T1.105.09-1996, ETS300.147 (1/95),

ETS300.417-1-1 (1/96).

Applications

■ SONET/SDH path termination multiplexers

■ SONET/SDH add/drop multiplexers

■ SONET/SDH cross connects

■ Digital access cross connects

■ DS1/E1 broadcast

■ SONET/SDH test equipment