<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE THIRD
QUARTER 2000 FORM 10-Q OF ACCORD NETWORKS LTD., AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JUL-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 27,148
<SECURITIES> 30,457
<RECEIVABLES> 10,384
<ALLOWANCES> 476
<INVENTORY> 7,338
<CURRENT-ASSETS> 75,327
<PP&E> 6,862
<DEPRECIATION> 2,200
<TOTAL-ASSETS> 81,414
<CURRENT-LIABILITIES> 15,105
<BONDS> 0
0
0
<COMMON> 58
<OTHER-SE> 64,974
<TOTAL-LIABILITY-AND-EQUITY> 81,414
<SALES> 28,074
<TOTAL-REVENUES> 28,074
<CGS> 8,501
<TOTAL-COSTS> 8,501
<OTHER-EXPENSES> 25,494
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> (739)
<INCOME-PRETAX> (4,552)
<INCOME-TAX> 0
<INCOME-CONTINUING> (4,552)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (4,552)
<EPS-BASIC> (0.57)
<EPS-DILUTED> (0.57)
</TABLE>