 |
 | | ADTRAN DSU 5600 - DSU - external - RS-232 - 64 Kbps
$293.18 | | | | ADTRAN DSU III AR - DSU/CSU - plug-in module - 64 Kbps - 1 digital port(s)
$437.07 |
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| | ADTRAN DSU III AR - DSU - plug-in module - RS-232/V.35 - 64 Kbps - 4 digital port(s)
$377.24 | | | | ADTRAN DSU III AR - DSU - plug-on module - RS-232/V.35 - 64 Kbps - 2 digital port(s)
$377.24 |
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| | ADTRAN DSU IV ESP - DSU/CSU - external - 64 Kbps - 1 digital port(s), English
$543.32 | | | | ADTRAN ISDN DBU - ISDN terminal adapter - plug-in module - ISDN BRI - 128 Kbps
$331.82 |
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 | | ADTRAN OCU 45 - Modem (digital) - external - Fibre Channel - 51.84 Mbps - T-3/E-3
$1,265.68 | | | | ADTRAN OCU 45 - Modem (digital) - external - Fibre Channel - 51.84 Mbps - T-3/E-3
$1,967.16 |
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| | ADTRAN OCU 45 - Modem (digital) - external - Fibre Channel - 51.84 Mbps - T-3/E-3
$1,315.28 | |  | | ADTRAN ISU 2x64 - ISDN terminal adapter - external - RS-232 - ISDN BRI U - 128 Kbps
$689.78 |
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| | ADTRAN NT1 ACE - ISDN NT1 - external - 128 Kbps
$141.48 | |  | | ISDN terminal adapter - plug-in module - ISDN BRI - 128 Kbps - 8 digital port(s)
$2,468.97 |
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 | | ADTRAN Express 3000 - ISDN terminal adapter - external - RS-232 - ISDN BRI U - 128 Kbps
$276.57 | | | | DSU/CSU - external - RS-232/V.35 - 1.5 Mbps - 2 digital port(s), English
$932.97 |
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| | DSU/CSU - external - RS-232/V.35 - 1.5 Mbps - 3 digital port(s) - EN, English
$814.67 | | | | ADTRAN - ISDN terminal adapter - plug-in module - ISDN PRI T1 - T-1
$302.03 |
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| | ADTRAN TSU 120 - DSU/CSU - external - V.35 - 1.544 Mbps - T-1 - government
$1,504.09 | | | | DSU/CSU - external - RS-232/V.35 - 1.5 Mbps - 3 digital port(s), English
$1,460.66 |
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|
 | | ADTRAN TSU V.35 - DSU/CSU - plug-in module - V.35 - 1.5 Mbps - T-1
$717.36 | | | | ADTRAN Express 3010 - ISDN terminal adapter - external - RS-232 - ISDN BRI U - 128 Kbps
$431.87 |
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|
 | | ADTRAN V.34 DBU - Modem (analog) - plug-in module - 33.6 Kbps
$306.88 | |  | | Voice interface card - plug-in module - expansion slot - 8 digital port(s)
$789.59 |
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|
 | | ADTRAN DSU IV ESP - DSU/CSU - external - RS-232/V.35 - 64 Kbps
$654.31 | | | | ADTRAN Quad FXS+ - Voice interface card - plug-in module - expansion slot - 64 Kbps / 4 analog port(s)
$520.90 |
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| | Modem (analog) - plug-on module - 33.6 Kbps
$185.34 | | | | ISDN terminal adapter - plug-on module - ISDN BRI U - 128 Kbps
$232.69 |
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 | | ADTRAN TSU ACE - DSU/CSU - external - 1.544 Mbps - T-1
$442.86 |
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