STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
PM4351
COMET
COMBINED E1/T1
TRANSCEIVER/FRAMER
DATA SHEET
ISSUE10: NOVEMBER 2000
PMC-Sierra, Inc. 105 - 8555 Baxter Place Burnaby, BC Canada V5A 4V7 604 .415.6000
STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
PMC-Sierra, Inc. 105 - 8555 Baxter Place Burnaby, BC Canada V5A 4V7 604 .415.6000
STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
CONTENTS
1 FEATURES.............................................................................................. 1
1.1 Receiver section:........................................................................... 2
1.2 Transmitter section: ....................................................................... 4
2 APPLICATIONS....................................................................................... 6
3 REFERENCES......................................................................................... 7
4 APPLICATION EXAMPLE.......................................................................11
5 BLOCK DIAGRAM................................................................................. 13
6 DESCRIPTION ...................................................................................... 14
7 PIN DIAGRAMs...................................................................................... 17
8 PIN DESCRIPTION................................................................................ 19
9 FUNCTIONAL DESCRIPTION............................................................... 32
9.1 Receive Interface ........................................................................ 32
9.2 Clock and Data Recovery (CDRC).............................................. 35
9.3 T1 Framer ................................................................................... 38
9.4 E1 Framer................................................................................... 39
9.5 T1 Inband Loopback Code Detector (IBCD) ............................... 47
9.6 T1 Pulse Density Violation Detector (PDVD)............................... 47
9.7 Performance Monitor Counters (PMON)..................................... 47
9.8 T1 Bit Oriented Code Detector (RBOC)...................................... 48
9.9 HDLC Receiver (RDLC) .............................................................. 48
9.10 T1 Alarm Integrator (ALMI).......................................................... 49
9.11 Receive Elastic Store (RX-ELST)................................................ 50
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
9.12 Receive Jitter Attenuator (RJAT) ................................................. 51
9.13 Signaling Extractor (SIGX).......................................................... 51
9.14 Receive Per-channel Serial Controller (RPSC)........................... 52
9.15 T1 Signaling Aligner (SIGA)......................................................... 52
9.16 T1 Basic Transmitter (XBAS) ...................................................... 52
9.17 E1 Transmitter (E1-TRAN).......................................................... 53
9.18 Transmit Elastic Store (TX-ELST)............................................... 53
9.19 Transmit Per-Channel Serial Controller (TPSC).......................... 54
9.20 T1 Inband Loopback Code Generator (XIBC)............................. 54
9.21 T1 Bit Oriented Code Generator (XBOC).................................... 55
9.22 HDLC Transmitters...................................................................... 55
9.23 T1 Automatic Performance Report Generation........................... 56
9.24 Pulse Density Enforcer (XPDE)................................................... 57
9.25 Pseudo Random Pattern Generation and Detection................... 57
9.26 Transmit Jitter Attenuator (TJAT)................................................. 57
9.27 Timing Options (TOPS)............................................................... 62
9.28 Line Transmitter........................................................................... 62
9.29 Backplane Receive Interface (BRIF)........................................... 63
9.30 Backplane Transmit Interface (BTIF)........................................... 64
9.31 JT AG Test Access Port................................................................ 65
9.32 Microprocessor Interface (MPIF)................................................. 65
10 REGISTER DESCRIPTION................................................................... 66
10.1 Normal Mode Register Memory Map........................................... 66
11 NORMAL MODE REGISTER DESCRIPTION....................................... 75
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
12 TEST FEATURES DESCRIPTION ...................................................... 349
12.1 Test Mode 0............................................................................... 351
12.2 JT AG Test Port.......................................................................... 353
13 FUNCTIONAL TIMING......................................................................... 356
13.1 Transmit Backplane Interface.................................................... 356
13.2 Receive Backplane Interface..................................................... 362
14 OPERATION........................................................................................ 367
14.1 Configuring the COMET from Reset.......................................... 367
14.2 Using the Internal HDLC Transmitters....................................... 373
14.2.1Automatic transmission mode using interrupts:.............. 374
14.2.2TDPR Interrupt Routine:................................................. 375
14.2.3Automatic transmission mode using polling:................... 376
14.3 Using the Internal HDLC Receivers........................................... 377
14.4 T1 Automatic Performance Report Format................................ 379
14.5 Using the Transmit Line Pulse Generator ................................. 381
14.6 Using the Line Receiver............................................................ 401
14.6.1T1 Performance Monitor Mode........................................411
14.7 Using the Test Pattern Generator.............................................. 414
14.7.1Common T est Patterns................................................... 415
14.8 Using the Loopback Modes....................................................... 417
14.8.1Line Loopback................................................................ 417
14.8.2Payload Loopback.......................................................... 418
14.8.3Diagnostic Digital Loopback ........................................... 419
14.8.4Per-Channel Loopback................................................... 420
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
14.9 Using the Per-Channel Serial Controllers.................................. 421
14.9.1Initialization..................................................................... 421
14.9.2Direct Access Mode........................................................ 421
14.9.3Indirect Access Mode ..................................................... 421
14.10 Isolating an Interrupt.................................................................. 422
14.11 Using the Performance Monitor Counter Values....................... 422
14.12 JTAG Support............................................................................ 428
15 ABSOLUTE MAXIMUM RATINGS....................................................... 438
16 D.C. CHARACTERISTICS................................................................... 439
17 A.C. TIMING CHARACTERISTICS...................................................... 442
17.1 Microprocessor Interface Timing Characteristics....................... 442
17.2 Transmit Backplane Interface (Figure 71, Figure 73)................ 446
17.3 Receive Backplane Interface (Figure 75, Figure 77)................. 448
17.4 Receive Digital Interface (Figure 79)......................................... 452
17.5 Transmit Digital Interface (Figure 81)........................................ 453
17.6 JTAG Port Interface (Figure 83)................................................ 455
18 ORDERING AND THERMAL INFORMA TION...................................... 458
19 MECHANICAL INFORMATION............................................................ 459
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
LIST OF REGISTERS
Register 000H: Global Configuration................................................................ 76
Register 001H: Clock Monitor........................................................................... 78
Register 002H: Receive Options....................................................................... 80
Register 003H: Receive Line Interface Configuration....................................... 82
Register 004H: Transmit Line Interface Configuration...................................... 85
Register 005H: Transmit Framing and Bypass Options.................................... 87
Register 006H: Transmit Timing Options.......................................................... 90
Register 007H: Interrupt Source #1.................................................................. 95
Register 008H: Interrupt Source #2.................................................................. 96
Register 009H: Interrupt Source #3.................................................................. 97
Register 00AH: Master Diagnostics.................................................................. 98
Register 00BH: Master Test............................................................................ 100
Register 00CH: Analog Diagnostics................................................................ 102
Register 00DH: Revision/Chip ID/Global PMON Update................................ 103
Register 00EH: Reset..................................................................................... 104
Register 00FH: PRGD Positioning/Control and HDLC Control....................... 105
Register 010H: CDRC Configuration.............................................................. 108
Register 011H: CDRC Interrupt Control...........................................................110
Register 012H: CDRC Interrupt Status............................................................111
Register 013H: Alternate Loss of Signal Status...............................................113
Register 014H: RJAT Interrupt Status..............................................................114
Register 015H: RJAT Divider N1 Control.........................................................115
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Register 016H: RJAT Divider N2 Control.........................................................116
Register 017H: RJAT Configuration.................................................................117
Register 018H: TJAT Interrupt Status..............................................................119
Register 019H: TJAT Jitter Attenuator Divider N1 Control.............................. 120
Register 01AH: TJAT Divider N2 Control........................................................ 121
Register 01BH: TJAT Configuration................................................................ 123
Register 01CH: RX-ELST Configuration ......................................................... 125
Register 01DH: RX-ELST Interrupt Enable/Status.......................................... 126
Register 01EH: RX-ELST Idle Code............................................................... 127
Register 020H: TX-ELST Configuration.......................................................... 128
Register 021H: TX-ELST Interrupt Enable/Status........................................... 129
Register 028H: RXCE Receive Data Link 1 Control....................................... 130
Register 029H: RXCE Receive Data Link 1 Bit Select.................................... 132
Register 02AH: RXCE Receive Data Link 2 Control....................................... 133
Register 02BH: RXCE Receive Data Link 2 Bit Select................................... 134
Register 02CH: RXCE Receive Data Link 3 Control....................................... 135
Register 02DH: RXCE Receive Data Link 3 Bit Select................................... 136
Register 030H: BRIF Configuration................................................................ 137
Register 031H: BRIF Frame Pulse Configuration........................................... 140
Register 032H: BRIF Parity/F-bit Configuration.............................................. 144
Register 033H: BRIF Time Slot Offset............................................................ 146
Register 034H: BRIF Bit Offset....................................................................... 147
Register 038H: TXCI Transmit Data Link 1 Control ........................................ 149
Register 039H: TXCI Transmit Data Link 1 Bit Select..................................... 151
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Register 03AH: TXCI Transmit Data Link 2 Control........................................ 152
Register 03BH: TXCI Transmit Data Link 2 Bit Select.................................... 153
Register 03CH: TXCI Transmit Data Link 3 Control........................................ 154
Register 03DH: TXCI Transmit Data Link 3 Bit Select.................................... 155
Register 040H: BTIF Configuration................................................................. 156
Register 041H: BTIF Frame Pulse Configuration........................................... 159
Register 042H: BTIF Parity Configuration and Status..................................... 161
Register 043H: BTIF Time Slot Offset ............................................................ 163
Register 044H: BTIF Bit Offset....................................................................... 164
Register 048H: T1 FRMR Configuration......................................................... 166
Register 049H: T1 FRMR Interrupt Enable..................................................... 168
Register 04AH: T1 FRMR Interrupt Status...................................................... 170
Register 04CH: IBCD Configuration ............................................................... 172
Register 04DH: IBCD Interrupt Enable/Status................................................ 173
Register 04EH: IBCD Activate Code............................................................... 175
Register 04FH: IBCD Deactivate Code........................................................... 176
Register 050H: SIGX Configuration Register (COSS = 0)............................. 177
Register 050H: SIGX Change of Signaling State Register (COSS = 1).......... 179
Register 051H: SIGX Timeslot Indirect Status (COSS = 0)............................ 180
Register 051H: SIGX Change Of Signaling State Change (COSS=1)............ 181
Register 052H: SIGX Timeslot Indirect Address/Control (COSS = 0)............. 182
Register 052H: SIGX Change of Signaling State Register (COSS = 1).......... 183
Register 053H: SIGX Timeslot Indirect Data Buffer (COSS = 0) .................... 184
Register 053H: SIGX Change of Signaling State (COSS = 1)........................ 185
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Register 054H: T1 XBAS Configuration.......................................................... 191
Register 055H: T1 XBAS Alarm Transmit....................................................... 193
Register 056H: T1 XIBC Control..................................................................... 194
Register 057H: T1 XIBC Loopback Code....................................................... 196
Register 058H: PMON Interrupt Enable/Status............................................... 197
Register 059H: PMON Framing Bit Error Count............................................. 199
Register 05AH: PMON OOF/COFA/Far End Block Error Count LSB ............. 200
Register 05BH: PMON OOF/COFA/Far End Block Error Count MSB ............ 201
Register 05CH: PMON Bit Error/CRC Error Count LSB ................................. 202
Register 05DH: PMON Bit Error/CRC Error Count MSB ................................ 203
Register 05EH: PMON LCV Count (LSB)....................................................... 204
Register 05FH: PMON LCV Count (MSB) ...................................................... 205
Register 060H: T1 ALMI Configuration ........................................................... 206
Register 061H: T1 ALMI Interrupt Enable....................................................... 208
Register 062H: T1 ALMI Interrupt Status........................................................ 209
Register 063H: T1 ALMI Alarm Detection Status............................................ 210
Register 065H: T1 PDVD Interrupt Enable/Status.......................................... 212
Register 067H: T1 XBOC Code...................................................................... 214
Register 069H: T1 XPDE Interrupt Enable/Status .......................................... 215
Register 06AH: T1 RBOC Enable................................................................... 217
Register 06BH: T1 RBOC Code Status .......................................................... 218
Register 06CH: TPSC Configuration .............................................................. 219
Register 06DH: TPSC µP Access Status........................................................ 220
Register 06EH: TPSC Channel Indirect Address/Control ............................... 221
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Register 06FH: TPSC Channel Indirect Data Buffer....................................... 222
Register 070H: RPSC Configuration............................................................... 231
Register 071H: RPSC µP Access Status........................................................ 232
Register 072H: RPSC Channel Indirect Address/Control ............................... 233
Register 073H: RPSC Channel Indirect Data Buffer....................................... 234
Register 078H: T1 APRM Configuration/Control............................................. 239
Register 079H: T1 APRM Manual Load.......................................................... 241
Register 07AH: T1 APRM Interrupt Status...................................................... 242
Register 07BH: T1 APRM One Second Content Octet 2................................ 243
Register 07CH: T1 APRM One Second Content Octet 3................................ 244
Register 07DH: T1 APRM One Second Content Octet 4................................ 245
Register 07EH: T1 APRM One Second Content MSB (Octet 5)..................... 246
Register 07FH: T1 APRM One Second Content LSB (Octet 6)..................... 248
Register 080H: E1 TRAN Configuration ......................................................... 250
Register 081H: E1 TRAN Transmit Alarm/Diagnostic Control......................... 253
Register 082H: E1 TRAN International/National Control................................ 255
Register 083H: E1 TRAN Extra Bits Control................................................... 256
Register 084H: E1 TRAN Interrupt Enable..................................................... 257
Register 085H: E1 TRAN Interrupt Status...................................................... 259
Register 086H: E1 TRAN National Bits Codeword Select.............................. 261
Register 087H: E1 TRAN National Bits Codeword......................................... 263
Register 090H: E1 FRMR Frame Alignment Options...................................... 265
Register 091H: E1 FRMR Maintenance Mode Options .................................. 267
Register 092H: E1 FRMR Framing Status Interrupt Enable............................ 269
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Register 093H: E1 FRMR Maintenance/Alarm Status Interrupt Enable.......... 270
Register 094H: E1 FRMR Framing Status Interrupt Indication ....................... 271
Register 095H: E1 FRMR Maintenance/Alarm Status Interrupt Indication...... 272
Register 096H: E1 FRMR Framing Status...................................................... 273
Register 097H: E1 FRMR Maintenance/Alarm Status.................................... 275
Register 098H: E1 FRMR Timeslot 0 International/National Bits.................... 277
Register 099H: E1 FRMR CRC Error Counter - LSB...................................... 279
Register 09AH: E1 FRMR CRC Error Counter – MSB/Timeslot 16 Extra Bits 280
Register 09BH: E1 FRMR National Bit Codeword Interrupt Enables.............. 283
Register 09CH: E1 FRMR National Bit Codeword Interrupts.......................... 285
Register 09DH: E1 FRMR National Bit Codeword.......................................... 286
Register 09EH: E1 FRMR Frame Pulse/Alarm/V5.2 Link ID Interrupt Enables287
Register 09FH: E1 FRMR Frame Pulse/Alarm Interrupts............................... 289
Register 0A8H (#1), 0B0H (#2), 0B8H (#3): TDPR Configuration .................. 291
Register 0A9H (#1), 0B1H (#2), 0B9H (#3): TDPR Upper Transmit Threshold293
Register 0AAH (#1), 0B2H (#2), 0BAH (#3): TDPR Lower Interrupt Threshold294
Register 0ABH (#1), 0B3H (#2), 0BBH (#3): TDPR Interrupt Enable............. 295
Register 0ACH (#1), 0B4H (#2), 0BCH (#3): TDPR Interrupt Status.............. 296
Register 0ADH (#1), 0B5H (#2), 0BDH (#3): TDPR Transmit Data ................ 298
Registers 0C0H (#1), 0C8H (#2), 0D0H (#3): RDLC Configuration................ 299
Registers 0C1H (#1), 0C9H (#2), 0D1H (#3): RDLC Interrupt Control ........... 301
Registers 0C2H (#1), 0CAH (#2), 0D2H (#3): RDLC Status........................... 302
Registers 0C3H (#1), 0CBH (#2), 0D3H (#3): RDLC Data ............................. 305
Registers 0C4H (#1), 0CCH (#2), 0D4H (#3): RDLC Primary Address Match 306
PROPRIETARY AND CONFIDENTIAL
STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Registers 0C5H (#1), 0CDH (#2), 0D5H (#3): RDLC Secondary Address Match
............................................................................................................. 307
Register 0D6H: CSU Configuration ................................................................ 308
Register 0D8H: RLPS Equalization Indirect Data........................................... 310
Register 0D9H: RLPS Equalization Indirect Data............................................311
Register 0DAH: RLPS Equalization Indirect Data........................................... 312
Register 0DBH: RLPS Equalization Indirect Data........................................... 313
Register 0DCH: RLPS Equalizer Voltage Reference...................................... 314
Register 0E0H: PRGD Control........................................................................ 315
Register 0E1H: PRGD Interrupt Enable/Status............................................... 317
Register 0E2H: PRGD Shift Register Length.................................................. 319
Register 0E3H: PRGD Tap ............................................................................. 320
Register 0E4H: PRGD Error Insertion ............................................................ 321
Register 0E8H: PRGD Pattern Insertion #1.................................................... 322
Register 0E9H: PRGD Pattern Insertion #2.................................................... 323
Register 0EAH: PRGD Pattern Insertion #3 ................................................... 324
Register 0EBH: PRGD Pattern Insertion #4 ................................................... 325
Register 0ECH: PRGD Pattern Detector #1 ................................................... 326
Register 0EDH: PRGD Pattern Detector #2 ................................................... 327
Register 0EEH: PRGD Pattern Detector #3.................................................... 328
Register 0EFH: PRGD Pattern Detector #4.................................................... 329
Register 0F0H: XLPG Line Driver Configuration.............................................330
Register 0F1H: XLPG Control/Status.............................................................. 332
Register 0F2H: XLPG Pulse Waveform Storage Write Address..................... 333
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Register 0F3H: XLPG Pulse Waveform Storage Data.................................... 334
Register 0F4H: XLPG Analog Test Negative Control...................................... 335
Register 0F5H: XLPG Analog Test Positive Control........................................ 336
Register 0F6H: XLPG Fuse Data Select......................................................... 337
Register 0F8H: RLPS Configuration and Status............................................. 338
Register 0F9H: RLPS ALOS Detection/Clearance Threshold......................... 340
Register 0FAH: RLPS ALOS Detection Period............................................... 342
Register 0FBH: RLPS ALOS Clearance Period.............................................. 343
Register 0FCH: RLPS Equalization Indirect Address...................................... 344
Register 0FDH: RLPS Equalization Read/WriteB Select................................ 345
Register 0FEH: RLPS Equalizer Loop Status and Control.............................. 346
Register 0FFH: RLPS Equalizer Configuration............................................... 347
Register 00BH: COMET Master Test .............................................................. 350
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
LIST OF FIGURES
Figure 1 - Wireless Base Station Application ................................................11
Figure 2 - V5.1 Interface Application............................................................ 12
Figure 3 PM4351-RI COMET Pin Diagram.................................................. 17
Figure 4 PM4351-NI COMET Pin Diagram.................................................. 18
Figure 5 - External Analog Interface Circuits................................................ 33
Figure 6 - T1 Jitter Tolerance ....................................................................... 37
Figure 7 - Compliance with ITU-T Specification G.823 for E1 Input Jitter .... 38
Figure 8 - CRC Multiframe Alignment Algorithm........................................... 43
Figure 9 - TJAT Jitter Tolerance ................................................................... 59
Figure 10 - TJAT Minimum Jitter Tolerance vs. XCLK Accuracy .................... 60
Figure 11 - TJAT Jitter Transfer...................................................................... 61
Figure 12 - Transmit Timing Options.............................................................. 94
Figure 13 - Transmit Backplane: CMS=0, FE=1, DE=1, BTFP is Input........... 356
Figure 14 - Transmit Backplane: CMS=0, FE=1, DE=0, BTFP is Input........... 356
Figure 15 - Transmit Backplane: CMS=1, FE=1, DE=1, BTFP is Input........... 356
Figure 16 - Transmit Backplane: CMS=1, FE=0, DE=1, BTFP is Input.......... 356
Figure 17 - Transmit Backplane: CMS=0, FE=1, DE=1, BTFP is Output........ 357
Figure 18 - Transmit Backplane: CMS=0, FE=1, DE=0, BTFP is Output........ 357
Figure 19 - Transmit Backplane at 1.544 Mbit/s (T1 mode)......................... 357
Figure 20 - Transmit Backplane at 2.048 Mbit/s (T1 mode)......................... 358
Figure 21 - Transmit Backplane at 2.048 Mbit/s (E1 mode)......................... 359
Figure 22 - Transmit Backplane at 4.096 Mbit/s (T1 mode)......................... 359
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Figure 23 - Transmit Backplane at 4.096 Mbit/s (E1 mode)......................... 360
Figure 24 - Transmit Backplane at 8.192 Mbit/s (T1 mode)......................... 360
Figure 25 - Transmit Backplane at 8.192 Mbit/s (E1 mode)......................... 361
Figure 26 - Concentration Highway Interface Timing, Example 1 ................ 361
Figure 27 - Concentration Highway Interface Timing, Example 2 ................ 361
Figure 28 - Receive Backplane at 1.544 Mbit/s (T1 Mode).......................... 362
Figure 29 - Receive Backplane at 2.048 Mbit/s (T1 Mode).......................... 363
Figure 30 - Receive Backplane at 2.048 Mbit/s (E1 Mode).......................... 363
Figure 31 - Receive Backplane at 4.096 Mbit/s (T1 Mode)......................... 364
Figure 32 - Receive Backplane at 4.096 Mbit/s (E1 Mode)......................... 364
Figure 33 - Receive Backplane at 8.192 Mbit/s (T1 Mode)......................... 365
Figure 34 - Receive Backplane at 8.192 Mbit/s (E1 Mode)......................... 365
Figure 35 - Concentration Highway Interface Timing, Example 1 ............... 366
Figure 36 - Concentration Highway Interface Timing, Example 2 ............... 366
Figure 37 - Typical Data Frame.................................................................... 377
Figure 38 - Pattern Generator Structure....................................................... 414
Figure 39 - Line Loopback........................................................................... 418
Figure 40 - Payload Loopback..................................................................... 419
Figure 41 - Diagnostic Digital Loopback....................................................... 420
Figure 42 - LCV Count vs. BER (E1 mode).................................................. 424
Figure 43 - FER Count vs. BER (E1 mode) ................................................. 424
Figure 44 - CRCE Count vs. BER (E1 mode).............................................. 425
Figure 45 - LCV Count vs. BER (T1 mode).................................................. 426
Figure 46 - FER Count vs. BER (T1 ESF mode).......................................... 426
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Figure 47 - CRCE Count vs. BER (T1 ESF mode)....................................... 427
Figure 48 - CRCE Count vs. BER (T1 SF mode)......................................... 427
Figure 49 - Boundary Scan Architecture ...................................................... 428
Figure 50 - TAP Controller Finite State Machine.......................................... 430
Figure 51 - Input Observation Cell (IN_CELL) ............................................. 435
Figure 52 - Output Cell (OUT_CELL)........................................................... 436
Figure 53 - Bidirectional Cell (IO_CELL)...................................................... 436
Figure 54 - Layout of Output Enable and Bidirectional Cells........................ 437
Figure 55 - Microprocessor Read Access Timing......................................... 443
Figure 56 - Microprocessor Write Access Timing......................................... 445
Figure 57 - Backplane Transmit Input Timing Diagram................................ 447
Figure 58 - Backplane Transmit Output Timing Diagram ............................. 448
Figure 59 - Backplane Receive Input Timing Diagram................................. 450
Figure 60 - Backplane Receive Output Timing Diagram.............................. 451
Figure 61 - Digital Receive Interface Timing Diagram.................................. 453
Figure 62 - Digital Transmit Interface Timing Diagram................................. 454
Figure 63 - JTAG Port Interface Timing........................................................ 456
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DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
LIST OF TABLES
Table 1 - Backplane Transmit Interface (4 pins)......................................... 19
Table 2 - Backplane Receive Interface (4 pins).......................................... 21
Table 3 - Transmit Line Interface (6 pins) ................................................... 23
Table 4 - Receive Line Interface (4 pins).................................................... 24
Table 5 - Timing Options Control (5 pins) ................................................... 24
Table 6 - Analog Support Circuitry (4 pins)................................................. 25
Table 7 - JTAG (IEEE 1149.1) Boundary Scan Test Interface (5 pins)........ 26
Table 8 - Microprocessor Interface (23 pins).............................................. 26
Table 9 - Power and Ground (25 pins)........................................................ 28
Table 10 - PM4351-RI Pin Summary............................................................ 30
Table 11 PM4351-NI Pin Summary.............................................................. 30
Table 12 - External Component Descriptions............................................... 34
Table 13 - Typical Input Return Loss at Receiver ......................................... 35
Table 14 - Termination Resistors, Transformer Ratios and TRL................... 35
Table 15 - E1-FRMR Framing States............................................................ 44
Table 16 - Normal Mode Register Memory Map........................................... 66
Table 17 - TJAT FIFO Output Clock Source................................................ 90
Table 18 - TJAT PLL Source......................................................................... 91
Table 19 - Transmit Timing Options Summary.............................................. 91
Table 20 - Loss of Signal Thresholds.......................................................... 109
Table 21 - Receive Backplane NXDS0 Mode Selection ............................. 137
Table 22 - Receive Backplane Rate............................................................ 139
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DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Table 23 - E1 Receive Backplane Frame Pulse Configurations................. 142
Table 24 - Receive Backplane Tri-state Control.......................................... 145
Table 25 - Receive Backplane Bit Offset for CMS = 0................................ 148
Table 26 - Receive Backplane Bit Offset for CMS = 1................................ 148
Table 27 - Transmit Backplane NXDS0 Mode Selection............................. 156
Table 28 - Transmit Backplane Rate........................................................... 158
Table 29 - Transmit Backplane Bit Offset for CMS = 0............................... 165
Table 30 - Transmit Backplane Bit Offset for CMS = 1............................... 165
Table 31 - T1 Framing Modes..................................................................... 167
Table 32 - Loopback Code Configurations ................................................. 172
Table 33 - SIGX Indirect Register Map....................................................... 185
Table 34 - SIGX Indirect Registers 10H - 1FH: Current Timeslot/Channel
Signaling Data ................................................................................................ 187
Table 35 - SIGX Indirect Registers 20H - 3FH: Delayed Timeslot/Channel
Signaling Data ................................................................................................ 188
Table 36 - Indirect Registers 40H - 5FH: Per-Timeslot Configuration......... 188
Table 37 - SIGX Per-Channel T1 Data Conditioning................................... 189
Table 38 - SIGX Per-Channel E1 Data Conditioning.................................. 189
Table 39 - T1 Framing Formats.................................................................. 192
Table 40 - T1 Zero Code Suppression Formats.......................................... 192
Table 41 - Transmit In-band Code Length.................................................. 194
Table 42 - T1 Framing Modes..................................................................... 207
Table 43 - TPSC Indirect Register Map...................................................... 222
Table 44 - TPSC Indirect Registers 20H-3FH: PCM Data Control byte...... 224
Table 45 - TPSC Transmit Data Conditioning............................................. 225
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DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Table 46 - Transmit Test Pattern Modes..................................................... 225
Table 47 - Transmit Zero Code Suppression Formats................................ 226
Table 48 - TPSC Indirect Registers 40H-5FH: IDLE Code byte.................. 227
Table 49 - TPSC Indirect Registers 60H-7FH: Signaling/E1 Control byte... 227
Table 50 - Transmit Per-timeslot Data Manipulation................................... 228
Table 51 - A-Law Digital Milliwatt Pattern.................................................... 228
Table 52 - µ-Law Digital Milliwatt Pattern.................................................... 229
Table 53 - RPSC Indirect Register Map ...................................................... 234
Table 54 - RPSC Indirect Registers 20H-3FH: PCM Data Control byte...... 236
Table 55 - Receive Test Pattern Modes...................................................... 236
Table 56 - RPSC Indirect Registers 40H-5FH: Data Trunk Conditioning Code
byte 238
Table 57 - RPSC Indirect Registers 61H-7FH: Signaling Trunk Conditioning
byte 238
Table 58 - NmNi Settings............................................................................ 249
Table 59 - E1 Signaling Insertion Mode...................................................... 250
Table 60 - E1 Timeslot 0 Bit 1 Insertion Control Summary......................... 252
Table 61 - National Bits Codeword Select .................................................. 262
Table 62 - Timeslot 0 Bit Position Allocation............................................... 278
Table 63 - Signaling Multiframe Timeslot 16, Frame 0 Bit Positions........... 282
Table 64 - E1 FRMR Codeword Select....................................................... 284
Table 65 - Receive Packet Byte Status....................................................... 302
Table 66 - Clock Synthesis Mode ............................................................... 308
Table 67 - Pattern Detector Register Configurations.................................. 315
Table 68 - Error Insertion Rates.................................................................. 321
PROPRIETARY AND CONFIDENTIAL
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PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Table 69 - Transmit Output Amplitude........................................................ 331
Table 70 - ALOS Detection/Clearance Thresholds..................................... 340
Table 71 - Equalization Feedback Frequencies.......................................... 347
Table 72 - Valid Period................................................................................ 348
Table 73 - Observing Inputs in Test Mode 0 ............................................... 351
Table 74 - Controlling Outputs in Test Mode 0............................................ 352
Table 75 - Boundary Scan Register............................................................ 354
Table 76 - Default Settings ......................................................................... 367
Table 77 - ESF Frame Format.................................................................... 368
Table 78 - SLC®96 Frame Format ............................................................. 369
Table 79 - SF Frame Format ...................................................................... 370
Table 80 - T1DM Frame Format................................................................. 370
Table 81 - E1 Frame Format....................................................................... 371
Table 82 - PMON Polling Sequence........................................................... 372
Table 83 - ESF FDL Processing ................................................................. 373
Table 84 - Performance Report Message Structure and Contents............. 380
Table 85 - Performance Report Message Structure Notes......................... 380
Table 86 - Performance Report Message Contents.................................... 381
Table 87 - Transmit Waveform Values for T1 Long Haul (LBO 0 dB):........ 382
Table 88 - Transmit Waveform Values for T1 Long Haul (LBO 7.5 dB):..... 383
Table 89 - Transmit Waveform Values for T1 Long Haul (LBO 15 dB):...... 384
Table 90 - Transmit Waveform Values for T1 Long Haul (LBO 22.5 dB): ... 385
Table 91 - Transmit Waveform Values for T1 Short Haul (0 - 110 ft.):........ 386
Table 92 - Transmit Waveform Values for T1 Short Haul (110 – 220 ft.):.... 387
PROPRIETARY AND CONFIDENTIAL
STANDARD PRODUCT
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PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Table 93 - Transmit Waveform Values for T1 Short Haul (220 – 330 ft.): ... 388
Table 94 - Transmit Waveform Values for T1 Short Haul (330 – 440 ft.): ... 389
Table 95 - Transmit Waveform Values for T1 Short Haul (440 – 550 ft.): ... 390
Table 96 - Transmit Waveform Values for T1 Short Haul (550 – 660 ft.): ... 391
Table 97 - TR62411 Transmit Waveform Values for T1 Long Haul (LBO 0 dB):
392
Table 98 - TR62411 Transmit Waveform Values for T1 Short Haul (0 - 110 ft.):
393
Table 99 - TR62411 Transmit Waveform Values for T1 Short Haul (110 –
220 ft.): 394
Table 100 - TR62411 Transmit Waveform Values for T1 Short Haul (220 –
330 ft.): 395
Table 101 - TR62411 Transmit Waveform Values for T1 Short Haul (330 –
440 ft.): 396
Table 102 - TR62411 Transmit Waveform Values for T1 Short Haul (440 –
550 ft.): 397
Table 103 - TR62411 Transmit Waveform Values for T1 Short Haul (550 –
660 ft.): 398
Table 104 - Transmit Waveform Values for E1 120 Ohm:............................. 399
Table 105 - Transmit Waveform Values for E1 75 Ohm:............................... 400
Table 106 - RLPS Register Programming....................................................... 401
Table 107 - RLPS Equalizer RAM Table (T1 mode) ..................................... 402
Table 108 - RLPS Equalizer RAM Table (E1 mode) ..................................... 407
Table 109 - RLPS Equalizer Lookup Table for T1 Performance Monitor Mode412
Table 110 - Pseudo-Random Pattern Generation (PS bit = 0) ..................... 415
Table 111 - Repetitive Pattern Generation (PS bit = 1).................................416
Table 112 - PMON Counter Saturation Limits (E1 mode)............................. 423
PROPRIETARY AND CONFIDENTIAL
STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
Table 113 - PMON Counter Saturation Limits (T1 mode)............................. 423
Table 114 - Boundary Scan Register............................................................ 433
Table 115 - D.C. Characteristics................................................................... 439
Table 116 - Microprocessor Read Access (Figure 55).................................. 442
Table 117 - Microprocessor Write Access (Figure 56).................................. 444
Table 118 - Transmit Backplane Interface.................................................... 446
Table 119 - Receive Backplane Interface..................................................... 448
Table 120 - Receive Digital Interface............................................................ 452
Table 121 - Transmit Digital Interface........................................................... 453
Table 122 - JTAG Port Interface................................................................... 455
Table 123 - Ordering Information.................................................................. 458
Table 124 - Thermal Information................................................................... 458
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
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PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
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PM4351 COMET
1 FEATURES
• Monolithic device which integrates software selectable full-featured T1 and
E1 framers and T1 and E1 short haul and long haul line interfaces.
• Meets or exceeds T1 and E1 shorthaul and longhaul network access
specifications including AN SI T1.102, T1.403, T1.408, AT&T TR 62411, ITU-T
G.703, G.704 as well as ETSI 300-011, CTR-4, CTR-12 and CTR-13.
• Provides encoding and decoding of B8ZS, HDB3 and AMI line codes.
• Provides receive equalization, clock recovery and line performance
monitoring.
• Provides transmit jitter attenuation and digitally programmable long haul and
short haul line build out.
• Provides on-board programmable binary sequence generators and detectors
for error testing including support for patterns recommended in ITU-T O.151.
• Provides three full-featured HDLC controllers, each with 128-byte transmit
and receive FIFO buffers.
• Automatically generates and transmits DS-1 performance report messages to
ANSI T1.231 and ANSI T1.408 specifications.
• Compatible with Mitel ST®-bus, A T&T CHI® and MVIP PCM backplanes,
supporting rates of 1.544 Mbit/s, 2.048 Mbit/s, 4.096 Mbit/s, and 8.192 Mbit/s.
Up to four COMET devices may be byte-interleaved on a single backplane
with no external circuitry.
• Supports NxDS0 fractional bandwidth backplane.
• Provides an 8-bit microprocessor bus interface for configuration, control, and
status monitoring.
• Uses line rate system clock.
• Provides a IEEE P1149.1 (JTAG) compliant test access port (TAP) and
controller for boundary scan test.
• Implemented in a low power 5 V tolerant +3.3 V CMOS technology.
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
• Available in a high density 80-pin MQFP (14 mm by 14 mm) package or an
81-ball CABGA (9 mm by 9 mm) package.
• Provides a -40°C to +85°C Industrial temperature operating range.
1.1 Receiver section:
• Guaranteed T1 signal reception for distances with up to 36 dB of cable
attenuation under production test conditions (772 kHz, VDD = 3.069V and
25° C) using PIC 22 gauge cable emulation.
• Guaranteed E1 signal reception for distances with up to 36 dB of cable
attenuation under production test conditions (1.024 MHz, VDD = 3.069V and
25° C) using PIC 22 gauge cable emulation.
• Recovers clock and data using a digital phase locked loop for high jitter
tolerance.
• Provides an alternative digital interface for applications without line interface
units.
• Frames to ITU-T G.704 basic and CRC-4 multiframe formatted E1 signals.
The framing procedures are consistent ITU-T G.706 specifications.
• Frames to DSX/DS-1 signals in D4, SF, ESF and SLC®96 formats.
• Frames to TTC JT-G704 multiframe formatted J1 signals. Supports the
alternate CRC-6 calculation for Japanese applications.
• Frames in the presence of and detects the “Japanese Yellow” alarm.
• Tolerates more than 0.3 UI peak-to-peak, high frequency jitter as required by
AT&T TR 62411 and Bellcore TR-TSY-000170.
• Detects violations of the ANSI T1.403 12.5% pulse density rule over a moving
192-bit window.
• Provides loss of signal detection as per ITU-T G.775 and ANSI T1.231. Red,
Yellow, and AIS alarm detection and integration are according to ANSI T1.231
specifications.
• Provides programmable in-band loopback activate and deactivate code
detection.
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
• Supports line and path performance monitoring according to AT&T and ANSI
specifications. Accumulators are provided for counting ESF CRC-6 errors,
framing bit errors, line code violations and loss of frame or change of frame
alignment events.
• Provides ESF bit-oriented code detection and an HDLC/LAPD interface for
terminating the ESF facility data link.
• Supports polled or interrupt-driven servicing of the HDLC interface.
• Extracts the data link in ESF and T1DM (DDS) modes. Optionally extracts a
datalink in the E1 national use bits.
• Extracts 4-bit codewords from the E1 national use bits as specified in
ETS 300 233
• Extracts up to three HDLC links from arbitrary time slots to support the D-
channel for ISDN Primary Rate Interfaces and the C-channels for V5.1/V5.2
interfaces.
• Detects the V5.2 link identification signal.
• Provides a two-frame elastic store buffer for backplane rate adaptation that
performs controlled slips and indicates slip occurrence and direction.
• Provides DS-1 robbed bit signaling extraction, with optional data inversion,
programmable idle code substitution, digital milliwatt code substitution, bit
fixing, and two superframes of signaling debounce on a per-channel basis.
• Frames to the E1 signaling multiframe alignment when enabled and extracts
channel associated signaling. Alternatively, a common channel signaling data
link may be extracted from timeslot 16.
• Can be programmed to generate an interrupt on change of signaling state.
• Provides trunk conditioning which forces programmable trouble code
substitution and signaling conditioning on all channels or on selected
channels.
• Provides diagnostic, line loopbacks and per-DS0 line loopback.
• Provides an integral pattern detector that may be programmed to detect
common pseudo-random sequences. The programmed sequence may be
detected in the entire frame, or on an NxDS0 basis.
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
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PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
• Provides an integral pattern generator that may be programmed to generate
common pseudo-random or repetitive sequences towards the backplane.
• Provides tristateable single-rail PCM and signaling data outputs for
1.544 Mbit/s, 2.048 Mbit/s, 4.096 Mbit/s or 8.192 Mbit/s backplane buses.
1.2 Transmitter section:
• Supports transfer of transmitted single rail PCM and signaling data from
1.544 Mbit/s, 2.048 Mbit/s, 4.096 Mbit/s or 8.192 Mbit/s backplane buses.
• Generates DSX-1 shorthaul and DS-1 longhaul pulses with programmable
pulse shape compatible with AT&T, ANSI and ITU requirements.
• Generates E1 pulses compliant to G.703 recommendations.
• Provides a digitally programmable pulse shape extending up to 5 transmitted
bit periods for custom long haul pulse shaping applications.
• Provides line outputs which are current limited and may be tristated for
protection or in redundant applications.
• Provides an alternative digital interface for external line interface units.
• Provides a digital phase locked loop for generation of a low jitter transmit
clock complying with all jitter attenuation, jitter transfer and residual jitter
specifications of AT&T TR 62411 and ETSI TBR 12 and TBR 13.
• Provides a FIFO buffer for jitter attenuation and rate conversion in the
transmit path.
• Provides a two-frame payload slip buffer to allow independent backplane and
line timing.
• Provides an integral pattern generator that may be programmed to generate
common pseudo-random or repetitive sequences. The programmed
sequence may be inserted in the entire frame, or on an NxDS0 basis.
• Provides an integral pattern detector that may be programmed to detect
common pseudo-random or repetitive sequences from the backplane.
• Transmits G.704 basic and CRC-4 multiframe formatted E1 signals or D4, SF
or ESF formatted DSX/DS-1 signals.
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
• Transmits TTC JT-G704 multiframe formatted J1 signals. Supports the
alternate ESF CRC-6 calculation for Japanese applications.
• Transmits the “Japanese Yellow” alarm.
• Supports unframed mode and framing bit, CRC, or data link by-pass.
• Provides signaling insertion, programmable idle code substitution, digital
milliwatt code substitution, and data inversion on a per channel basis.
• Provides trunk conditioning which forces programmable trouble code
substitution and signaling conditioning on all channels or on selected
channels.
• Provides minimum ones density through Bell (bit 7), GTE or DDS zero code
suppression on a per channel basis.
• Detects violations of the ANSI T1.403 12.5% pulse density rule over a moving
192-bit window and optionally stuffs ones to maintain minimum ones density.
• Allows insertion of framed or unframed in-band loopback code sequences.
• Allows insertion of a data link in ESF or T1DM (DDS) DS-1 modes.
Optionally inserts a datalink in the E1 national use bits.
• Supports 4-bit codeword insertion in the E1 national use bits as specified in
ETS 300 233
• Inserts up to three HDLC links into arbitrary time slots to support the D-
channel for ISDN Primary Rate Interfaces and the C-channels for V5.1/V5.2
interfaces.
• Supports transmission of the alarm indication signal (AIS) and the Yellow
alarm signal. Supports “Japanese Yellow” alarm generation.
• Provides ESF bit-oriented code generation.
PROPRIETARY AND CONFIDENTIAL
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STANDARD PRODUCT
DATA SHEET
PMC-1970624 ISSUE 10 COMBINED E1/T1 TRANSCEIVER
PM4351 COMET
2 APPLICATIONS
• T1/E1 Wireless Digital Loop Carriers (DLC's) and Cellular Base Stations
• T1/E1 Internet Access Equipment
• T1/E1 Channel Service Units (CSU)
• T1/E1 Frame Relay Interfaces
• T1/E1 ATM Interfaces
• T1/E1 Multiplexers (CPE MUX)
• Digital Private Branch Exchanges (PBX)
• Digital Access Cross-Connect Systems (DACS) and Electronic DSX Cross-
Connect Systems (EDSX)
• ISDN Primary Rate Interfaces (PRI)
• Test Equipment
PROPRIETARY AND CONFIDENTIAL
6