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Codex Limited Distance Modem Model # Description 2171 Codex limited distance sync/async 2 wire/4 wire 19.2 kbps line driver 2172 Codex bell spec - 30, 48, 56, 64, 72 & 80 kbps asyn only half/full duplex 2 or 4 wire 2173 Codex bell 2400 to 19.2 kbps sync/async full duplex 4 wire 2174 Codex bell spec - 30, 48, 56, 72 & 80 kbps –sync only full duplex 4 wire 2177 Codex ldsu stand alone unit with power supply FIBER Codex proprietary - up to 19.2 or 56kbs sync-full or half duplex - st or sma LDA/19.2 Codex proprietary - 300-19.2 kbps sync only 4 wire SRM-6SX Codex 2400 to 19.2 kpbs - sync line driver self powered - full duplex 4 wire T-1 FIBER Codex proprietary - t-1 (15.44 mpbd) 3 mile range full duplex 4 wire GO TO OUR HOMEPAGE - CLICK       | Products | Terminology | Search | Order | Wanted | email | Site-Map |

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