National Data Mux - 800-663-1141

Welcome to National Data Mux we carry great assortment of networking products like T1 CSU, T1 CSU/DSU, T1 multiplexers, Channel banks, T3 CSU/DSU Voice and Data Integrated Access Devices (IAD), Async and Sync dial-up and leased line modems, Statistical Multiplexers, Terminal Servers, ISDN modems, ISDN inverse multiplexers, Frame Relay Access Devices (FRAD) Fiber modems and Routers. We specialize in hard-to-find datacom products. We buy, sell, repair, refurbish and offer technical support.

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90-9738-01	**90-9738-01 DMM-3 GEN 1119.0 CLEI** Downloadable Memory Module daughter card, Requires System Control Card (90-0667-01 or 90- 0667-04/05/09 mother card. Supports Software downloading.
90-9740-01	DMM-3 GEN 1119.0 Downloadable Memory Module daughter card
90-3669-03	PWR TRAY -48/60VDC CLEI DC dual input power shelf with front panel indicators displaying power supply status and alarms. Does not contain a power supply. Can accommodate one or two PWR SUPPLY 48/60VDC (90-9524-02) or one power supply and one Mainstreet RINGER PSU (90-5946-01).
90-4927-01	28LC LINE CARD 6PT Includes redundant power supply dependant on the number of high speed interface cards and peripheral shelves, Quantity two needed per Dual PSU and DS3 Protected Pair.
Alcatel 2801 DTU 90-4925-01 (2 Wire) UDS 9645 Modem UDS 202T FSK Modem MX-1640-114 on Special MX-1620-114 on Special 90-0667-05 SYS CTL CARD 3 (8+) clei 90-9738-01 DMM-3 GEN 1119.0 CLEI 90-3081-01 DMM GEN 1117.0 90-2687-01 4WTO LINE CARD (12 CCT) 90-9524-01 POWER SUPPLY 100-240VAC 90-9524-02 POWER SUPPLY 48/60VDC 90-6534-01 DMM-3 GEN 1118.0 90-9244-01 DUAL E1 CARD 3 (75 OHM) 90-9244-02 120 ohm Dual E1 Card version 3 90-6396-01 27LC3 12 Port Line Card 90-9553-01 Alcatel GSLC Line Card