Description
The NEC PN-4DITB 4-line Direct In-Dialing Trunk Card features:
• Provides 4-loop detection circuits
• The card’s function is for loop detection, sending a reverse signal and PB to DP signal conversion
• Equipped with a –48 VDC On-Board Power supply
• Works in the NEAX 1000/2000 systems
• Refurbished
One-Year Warranty