Description
The Toshiba 4-circuit Caller ID Interface Unit (RCIU2) features: 
• 4-Caller ID circuits 
• 8-Caller ID circuits with RCIS subassembly
• 4-loop start lines on RCOU/RCOS
• 4 ground/loop start lines on RGLU
• Requires: a RCOU, RGLU or PCOU card
• Refurbished 
• One-Year Warranty
The RCIU2 card works on the following Toshiba systems: 
• CIX200
• CIX/CTX100
• CIX/CTX670
• DK40i (8 stations only)
• DK424i (8 stations only)
• DK424 (8 stations only)
