The DM704C converts G.703 signals at 2048kbit/s, with a frame structure according to G.704 for V.35 and V.36/V.11 interface signals. It is offered as a desktop chassis (195x200x44mm) with automatic selection of 93-250VAC or 36-72VDC power supply.

The DM704S converts G.703 signals at 2.048kbit/s rates with G.704 frame structures to V.35 or V.36/V.11 interfaces. It is comprised of a board of Telebrás standard dimensions, which can be used in both chassis and subracks in conformity with Telebrás' modem standards. These are the main features included:

The DM704SE is a device that uses the G.703 interface at 2,048kbit/s, with a frame structure in conformity with G.704, a V.35/V.11 interface or an Ethernet interface with the bridge remote functionality. Comprised of a Telebrás standard-size card, which can be used for both chassis and subracks in conformity with Telebrás' modem standards. These are the main features included:

DM155 is a device that converts CMI-encoded electric signals at 155Mbit/s (as per G.703) to optical signals also at 155Mbit/s. Desktop converter (175x194x40mm), with 93-253VAC and 48VDC automatic power supply.

The DM704CE is a device that uses the G.703 interface at 2,048kbit/s, with a frame structure in conformity with G.704, a V.35/V.11 interface or an Ethernet interface with the bridge remote functionality. Desktop converter (195x200x44mm), with 93-250VAC or 36-72VDC automatic power supply. These are the main features included: