The Comtech SDM-300A is a direct replacement for many Comtech EF Data modems.
Fully configured, the Comtech SDM-300A will meet or exceed all of the applicable requirements in IESS-308, 309, and 310 and is available with a full range of industry standard digital interfaces. COMPATIBILITY Maintaining Comtech EF Data's excellent history of modem compatibility, the SDM-300A is a direct replacement for many Comtech EF Data modems. When configured properly, the SDM-300A can be installed to communicate with or replace the following Comtech EF Data modems: SDM-100 SDM-308B SDM-650B SDM-300 SDM-309B SDM-6000 All Comtech EF Data redundancy switches (1:1 or M:N) can be used with the SDM-300A, making field replacement or upgrades of existing systems easy and cost effective.