Add to Cart Quick view Adtran DSU II AR Adtran DSU II AR - J131C - RS-232 Port and 1 Telco Port - AS IS Adtran Was: $28.00 Was: $55.00 Adtran DSU II AR Adtran DSU II AR - J131C - RS-232 Port and 1 Telco Port - AS IS Features: Primary V.35 Secure Channel RS-232 Port 1 Telco Port Power On test only. Condition: For Parts or Not... 15019 SKU: 15019 Weight: 5.00 LBS