Toshiba Direct Inward Dialing (DID) Interface (PCB) (Refurbished) |
| (Model # RDDU1) Note: Picture may not represent the actual product. We are continuously working on improving our website and reserve the right to change specifications, availability, and pricing without prior notice. Provides 4 DID line circuits. Mounts in the Expansion KSU. Maximum 1 RDDU per DK40 system. 1 for each 4 DID lines on DK280/DK424/DK424i system. K4RCU3 required for DTMF operation on DK40 systems. RRCS required for DTMF use on DK280/DK424 systems. BRCS required for DTMF use on DK424i systems. Primary protectors required. No ABR available. | |
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