The 8SLIU Card connects 8 analog extensions which are typically used for single line telephones and fax machines. The 8SLIU Card has a Mode Switch (for taking the card out of service), a status LED indicating proper card operation, and a port activity LED to indicate traffic on the card. The 8SLIU Card provides high voltage message waiting for single line sets with high voltage message waiting lamps. The 8SLIU Card also provides Caller ID to single line sets.

• Analog station ports: 8
• Activity LED: Yes
• High Voltage Message Waiting: Yes
• Mode switch: Yes
• Status LED: Yes
• Max. installed in DSX-80: 3 (24 station ports)
• Max. installed in DSX-160: 7 (56 station ports)