Part Name

Part Search

Part Number Part Name Part Description Image

Request a Quote 120A3 120A3 CSU Module The 120A3 CSU Module features: In combination with a DS1 circuit pack, it provides the essential functions of external CSUs; Small size, easier to install than external CSU; Does not require any option switch settings or DS1 cable; Vintage 2 and higher provide enhancements to support the payload loopback function available when the ESF framing format is selected (requires 700A loopback jack). 120A3 CSU Module