Avaya Lucent MDW 9031 TransTalk Wireless Handset 556E1 Radio Module Power Supply

Avaya Lucent MDW 9031 TransTalk Wireless Handset 556E1 Radio Module Power Supply

The Avaya Lucent MDW 9031 TransTalk is a wireless business telephone handset designed for use with Lucent and Avaya PBX telephone systems. This listing includes the complete system: the MDW 9031 handset with its Lucent charging cradle, the TransTalk 556E1 radio transmitter module, and both required power supplies. The handset connects wirelessly to the 556E1 base transmitter, which plugs into the PBX system to extend coverage throughout a facility.

Specifications & What's Included

• Handset: Avaya MDW 9031 (Comcode 108046525R)
• Charging cradle: Lucent branded, with Fully Charged / Charging / Discharging LED indicators
• Radio transmitter module: Lucent TransTalk 556E1 with external antenna and RJ telephone connector
• Power supply (transmitter module): Astec SA45-3129 — Input: AC 100–240V 50/60Hz; Output: DC 24V 1.875A, Max 45W
• Power supply (handset cradle): Lucent Technologies 481006002CO (Comcode 847523404) — Input: AC 115V 60Hz 10.5W; Output: DC 10V 600mA
• Handset display: amber backlit LCD
• Full alphanumeric keypad with soft function keys and dedicated feature buttons
• Form factor: portable wireless handset with desktop charging cradle

Applications

The Lucent/Avaya TransTalk MDW 9031 was part of Lucent Technologies' line of wireless telephone handsets for enterprise PBX environments, primarily the Definity G3 and MERLIN LEGEND systems. The 556E1 radio transmitter module connected to the PBX line card and provided wireless coverage within an office or facility, allowing staff to make and receive calls from the handset without being tethered to a desk. TransTalk systems were widely deployed in the late 1990s and early 2000s in hospitals, warehouses, manufacturing floors, and other settings where workers needed PBX telephone access while moving around. The MDW 9031 supports standard PBX call features including transfer, hold, and conference when paired with a compatible Definity or MERLIN system. Replacement handsets and complete sets like this one continue to be sought by organizations maintaining legacy Avaya/Lucent PBX infrastructure.