Overhead Unit (Ohu) Module; Figure 4-5: Ohu Block Diagram - Eci Telecom XDM-100 General Description Manual

XDM® -100

4.5 OverHead Unit (OHU) Module

The XDM-100 OHU module provides orderwire functionality for field technicians,
supporting conference calls between up to 10 participants. The OHU can be
accommodated in any of the shelf's I/O slots. In addition, the module supports:
Interface overhead access bytes towards the MXC card
♦
DTMF calls
♦
Additional standard line interfaces to access overhead bytes (future release)
♦
417006-2005-013-A02

Figure 4-5: OHU block diagram

ECI Telecom Ltd. Proprietary
System Design
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