HP E1610A 34 Mb/s (E3) Line Interface

The HP E1610A 34 Mb/s (E3) Line Interface generates and analyses ATM cell streams contained within a E3 framing format. It is a single-slot module that provides test capability at the physical and ATM cell layers for the HP E4200/E4210B Broadband Series Test System.

The Broadband Series Test System (BSTS) is a modular test platform for high-speed ATM transmission and protocol testing. Due to its modular nature, you can create a customized configuration that suits your specific test needs.

The HP E1610A 34 Mb/s (E3) Line Interface can be used in conjunction with other BSTS line interfaces, dedicated test modules, and test software to perform these tests.

The industry-standard HP E4200/E4210 Broadband Series Test System (BSTS) is ideal for R&D engineering, product development, field trials and quality assurance. It supports the widest variety of standard interfaces of speeds up to 622 Mb/s; the broadest, most powerful range of signalling capabilities; the industry's most complete automated conformance test suites, time-savings features for monitoring, emulation, simulation, load generation, performance and automated testing.

• Cell based implementation with support for ATM, PLCP or pure-cell formats
• Operates in Terminal, Repeater, or Local Loop back modes
• Provides physical layer measurements, as well as error and alarm generation
• Internal traffic generator has 1 foreground channel and up to 100 background channels
• Works with Cell Protocol Processor

Modes
Three Tx/Rx modes are available. In Terminal mode, full signal 
generation and analysis functions are available. In Repeater mode, 
the received signal is re-transmitted (physical layer loopback). 
In Local Loopback mode, the transmit signal is electrically looped 
to the receiver.


ATM Cell Generation
   
The transmitted cell stream can contain ATM cells generated 
internally by the E1616A, and ATM cells generated by an optional 
HP E4209B Cell Protocol Processor module. ATM cells generated
on-board can consist of one foreground channel to stimulate the 
channel under test, and up to on hundred background channels for 
loading purposes. Fill cells are used to occupy unused bandwidth.

Total Bandwidth               
G.832: 33.920 Mb/s
G.751-PLCP: 30.528Mb/s
G.751-ATM TC: 34.010Mb/s
Pure-cell: 34.368 Mb/s

Modes                         
User-Network Interface (UNI)
Node-Node Interface (NNI)

HEC 
Automatic generation

Fill Cells                    
Idle
Unassigned

Channel Priority Order        
Foreground, background, CPP (highest to lowest priority)

Channel Control               
VCI
VPI
GFC
Payload Type
Cell Loss Priority

SAR-PDU Support               
AAL-0
AAL-1


Foreground Channel

Bandwidth                     
G.832: 100 b/s to 33.920 Mb/s
G.751-PLCP: 100 b/s to 30.528 Mb/s
G.751-ATM TC: 100 b/s to 34.010 Mb/s
Pure-cell: 100 b/sto 34.368 Mb/s

Accuracy                      
±0.02 ppm

Distribution                  
Off
Single burst
Periodic (according to the specified bandwidth)

Channel Depth                 
1500 cells (variable)

Cell Payload                  
Timestamp
Single cell PRBS
Cross cell PRBS
Data pattern
Byte access


Background Channels

Number of Channels            
Up to 100

Bandwidth                
G.832: 3 kb/s to 33.920 Mb/s
G.751-PLCP: 3 kb/s to 30.528 Mb/s
G.751-ATM TC: 3 kb/s to 34.010 Mb/s
Pure-cell: 3 kb/s to 34.368Mb/s

Accuracy  
±10 ppm

Distribution                  
Off
Periodic

Channel Density               
Bandwidth and cell distribution for each background channel is
individually assignable up to maximum bandwidth

Channel Depth
16 cells

Cell Payload                  
Single cell PRBS
Data pattern
Byte access


Cell Payloads

Payloads                      
Timestamp (32-bit departure timestamp value with 100 nanosecond 
resolution)
Cross cell PRBS-9
PRBS-15 (inverted and not inverted)
PRBS-23
Single cell PRBS-9
Data pattern or byte access

Data Patterns                 
User byte
AA55h or FF00h
Incrementing (value of each successive byte is incremented by 1)

Byte Access                   
Payload of all cells in the selected channel can be edited by the
user in an active channel environment, or off-line as a sequence of 
PDUs
 
AAL-1 automatically inserts first payload byte containing SN/SNP 
values and CSI bit


Erroring Control
Error conditions can be introduced to simulate alarm signals and
signal stressing. Error stressing is used to generate incorrect
bytes in a test signal.

Error Stressing Control       
Off
On
Pulse On (error condition is normally off; pulses on)
Pulse off (normally on; pulses off)
Sequence On (normally off; alternates on/off/on)
Sequence Off (normally on; alternates off/on/off)

ATM Error Injection          
Cell header or payload bytes with bit error masking

Cell Loss                     
Sequence Number in the SAR-PDU is skipped and a fill cell is inserted

PRBS Error Add                
Single bit error add to the PRBS pattern in the cell payload


G.832, G.751 & PLCP Stressing

G.832 Alarm Generation
Line AIS
Path FERF

G.832 Error Injection 
BIP error add
FEBE generation
CRC-7 error add
Trail trace access
Payload type (ATM, equipped, SDH TU-12s, unequipped)

G.832 Overhead Stressing      
Normal and alternative values can be defined for overheads
Pulse or sequence controls over normal and alternative overheads

G.751 Alarm Generation        
Line AIS
Remote Alarm
National Bit

G.751 Error Injection         
Frame alignment errors using a 10-bit mask with pulse and sequence 
control

PLCP Alarm Generation         
Jam signal
Yellow

PLCP Error Injection          
BIP error add
FEBE generation
C1 error mask
Link status signal set to: connected, Rx link up, or Rx link down

PLCP Overhead Stressing       
Normal and alternative values can be defined for overheads
Pulse or sequence controls over normal and alternative overheads


ATM, PLCP, G.832 & G.751 Measurements
Measurements are sampled every 100 milliseconds and accumulated
over the user-specified measurement period. Results from the most
recent complete measurement period are retained.

Measurement Period            
Range 1 second to 3 days in resolutions of 1 second

Result Types                  
Cumulative or latched (based on most recent measurement period)

Result Formats                
Count
Ratio
Seconds

ATM CellMeasurements         
HEC errors
Corrected headers
Cell count
Cell bandwidth
Select Cell Not Received (SCNR) alarm seconds

Cell Delay Measurements       
Cell delay
Inter-arrival time
Cell delay variation

Virtual Channel Errors        
AAL-1 SN/SNP errors
Cell loss
PRBS errors
PRBS sync loss alarm seconds

G.832 Measurements            
BIP-8 errors
CRC-7 errors
FEBE errors
Loss of signal alarm seconds
Out-of-frame alarm seconds
Loss of frame alarm seconds
Line AIS alarm seconds
FERF alarm seconds
Frame count
Coding violations
Trail traces

G.751 Measurements            
Loss of frame alarm seconds
Loss of signal alarm seconds
Line AIS alarm seconds
RAI alarm seconds
Coding violations

PLCP Measurements          
BIP errors
FEBE errors
Trailer mismatch errors
C1 code errors
C1 corrected code errors
Out-of-frame alarm seconds
Yellow alarm seconds
Jam alarm seconds
Frame count

Pure-cell Measurements        
Loss of signal alarm seconds
Scrambler sync alarm seconds
Coding violations


ATM Capture
Provides capture of 1500 cells from the selected ATM cell stream.
Capture is manual or event triggered. Manual triggering captures
1500 cells after the trigger. Event triggering captures 750 cells
pre-trigger, and 750 cells post-trigger.

Manual                        
Triggered on user request

ATM Cell Triggers             
Cell loss
Header error
PRBS error
SN/SNP byte error
 

G.832 Capture
Provides capture of 256 G.832 frames (overhead and ATM cell
payload). Capture is manual or event triggered. Manual triggering
captures 256 frames after the trigger. Event triggering captures
128 frames before and 128 frames after trigger.

Manual                        
Triggered on user request

On Change                     
Triggered when change detected in value of selected overhead byte
Selected bits of trigger byte can be disabled using an 8-bit mask

On Value                      
Triggered when user defined value is detected in selected overhead
byte 
 
Selected bits of the user-defined value can be disabled using an 
8-bit mask

On Event                      
Triggered when defined G.832 event occurs (OOF, Frameword Error, BIP
Error, FEBE Error, FERF, Trail Trace Error, Trail Trace Change)


G.751 Capture
Provides capture of 256 G.751 frames (overhead and ATM cell
payload). Capture is manual or event triggered. Manual triggering
captures 256 frames after the trigger. Event triggering captures
128 frames before and 128 frames after trigger.

Manual                        
Triggered on user request

On Change                     
Triggered when change detected in any bit of the 16 bit overhead or 
the Frame Alignment Signal, or a change in the RAI or National Bit is 
detected


PLCP Capture
Provides capture of 256 PLCP frames (overhead and ATM cell payload). 
Capture is manual or event triggered. Manual triggering captures 
256 frames after the trigger. Event triggering captures 128 frames 
before and 128 frames after trigger.

Manual                        
Triggered on user request

On Change                      
Triggered when change detected in value of selected overhead byte
Selected bits of trigger byte can be disabled using an 8-bit mask

On Value    
Triggered when user defined value is detected in selected overhead byte
Any PLCP overhead byte can be selected as trigger byte

On Event                     
Triggered when defined PLCP event occurs (Frameword Error, BIP-8 Error, 
FEBE, C1 Code Error, C1 Corrected Code Error, Trailer Mismatch)


Applicable Standards

ATM Cells:                     

ITU-T Recommendation I.361 1995 B-ISDN ATM layer specification

Bellcore TA-NWT-001113 1993 Asynchronous Transfer Mode and 
ATM Adaptation Layer (AAL) Protocols Generic Requirements

G.832 Frames:                  
ITU-T COM 13-5-E, Rec. G.832 1995 Transport of SDH elements 
on PDH networks: Frame and multiplexing structures

ITU-T COM 13-5-E, Rec. G.804 1993 ATM cell mapping into 
plesiochronous digital hierarchy

G.751 Frames:
ETS 300-337 1995 Transmission and Multiplexing (TM)

ETS 300-214 1992 Network Aspects(NA)

ITU-T Rec. I.432 1993 B-ISDN user-network interface - 
Physical layer specification

Pure-Cell:                     
ITU-T Rec. I.432 1993 B-ISDN user-network interface - 
Physical layer specification

PLCP Frames:                   
ETS 300-214 1992 Network Aspects (NA)

Input & Output Signal:         
ITU-T G703 1991 Physical/Electrical Characteristics of 
Hierarchical Digital Interfaces

PRBS Patterns:                 
PRBS-9 as per ITU-T O.153 1992
PRBS-23 as per ITU-T O.151 1992

EMC:                           
Meets FTZ 1046/1984 (CISPR11, EN 55011)

HP E1610A     34 Mb/s (E3) Line Interface


Requirements:

Base system requirement:
HP E4200A/B     HP Broadband Series Test System Form 7 Transportable Base
or
HP E4210A/B     HP Broadband Series Test System Form 13 Mainframe Base

HP E4209A/B     Cell Protocol Processor
HP E4219A       ATM Network Impairment Emulator