Adtran Total Access 904 (2nd Generation) Integrated Access Device / VoIP SIP gateway, part number 4212904L1. More than one available — quantity listed; you are purchasing one unit. Each is tested, powered up, and factory-wiped to a clean configuration, ready for you to program to your own environment.

Each unit:

• Adtran Total Access 904, 2nd Gen (P/N 4212904L1)
• AOS R13.5.1.E
• Boot ROM 14.04.00 — the minimum required for the latest AOS builds, so it's upgrade-ready to current firmware with no boot-ROM obstacle (that ROM was only ever available via an Adtran support ticket, so it matters)

Specifications:

• 4× FXS analog voice ports via 50-pin Telco/amphenol VOICE connector
• Dual T1 interfaces: NET (T1 0/1) and DSX-1 (T1 0/2), RJ48
• 1× 10/100 Base-T Ethernet (ETH 0/1)
• DB9 CRAFT / console port
• Battery-backup connector (BATT)
• Internal AC power supply, IEC inlet (90–120VAC, 60Hz, 500mA) — no external brick
• 30 DSP voice channels

Condition & testing:
Used, tested working. Each unit was powered on, confirmed booting to a healthy state (Power and Status LEDs green), and factory-wiped: startup-config erased and all config files cleared from flash, verified via show startup-config and dir flash (screenshots included). Cosmetic condition is very good for age — light handling marks only. Photos are representative of the units you'll receive; both are in comparable condition.

Note: in the powered-on photo, the red DSX-1 and NET LEDs are the normal T1 alarm (LOS) state with no circuit connected — not a fault. Green Power and Status confirm the unit is healthy.

Terms:
Sold as-is, tested-functional. Used telecom equipment; please review the photos and ask any questions before purchasing.