Rainbow Electronics DS26519 - Manual

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GENERAL DESCRIPTION
The DS26519 is a single-chip 16-port framer and line
interface unit (LIU) combination for T1, E1, and J1
applications. Each port is independently configurable,
supporting both long-haul and short-haul lines. The
DS26519 is nearly software compatible with the
DS26528 and its derivatives.
APPLICATIONS
Routers
Channel Service Units (CSUs)
Data Service Units (DSUs)
Muxes
Switches
Channel Banks
T1/E1 Test Equipment
FUNCTIONAL DIAGRAM
DS26519
T1/J1/E1
Transceiver
T1/E1/J1
NETWORK
BACKPLANE
TDM
x16
ORDERING INFORMATION
PART TEMP RANGE PIN-PACKAGE
DS26519G 0
°C to +70°C 484 HSBGA
DS26519G+ 0
°C to +70°C 484 HSBGA
DS26519GN -40
°C to +85°C 484 HSBGA
DS26519GN+ -40
°C to +85°C 484 HSBGA
+ Denotes lead-free/RoHS compliant device.
FEATURES
16 Complete T1, E1, or J1 Long-Haul/
Short-Haul Transceivers (LIU Plus Framer)
Independent T1, E1, or J1 Selections for Each
Transceiver
Software-Selectable Transmit- and Receive-
Side Termination for 100
Ω T1 Twisted Pair,
110
Ω J1 Twisted Pair, 120Ω E1 Twisted Pair,
and 75
Ω E1 Coaxial Applications
Hitless Protection Switching
Crystal-Less Jitter Attenuators Can Be
Selected for Transmit or Receive Path; Jitter
Attenuator Meets ETS CTR 12/13, ITU-T
G.736, G.742, G.823, and AT&T Pub 62411
External Master Clock Can Be Multiple of
2.048MHz or 1.544MHz for T1/J1 or E1
Operation; This Clock is Internally Adapted
for T1 or E1 Usage in the Host Mode
Receive-Signal Level Indication from -2.5dB
to -36dB in T1 Mode and -2.5dB to -44dB in E1
Mode in Approximate 2.5dB Increments
Transmit Open- and Short-Circuit Detection
LIU LOS in Accordance with G.775, ETS 300
233, and T1.231
Transmit Synchronizer
Flexible Signaling Extraction and Insertion
Using Either the System Interface or
Microprocessor Port
Alarm Detection and Insertion
T1 Framing Formats of D4, SLC-96, and ESF
J1 Support
E1 G.704 and CRC-4 Multiframe
T1-to-E1 Conversion
Features Continued in Section 2 .
DS26519
16-Port T1/E1/J1 Transceiver
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