The T1 Trunk PCB provides advanced digital trunking and gives the DS2000 a maximum of 24 trunks in a single PCB slot. It offers the advantages of advanced digital trunking as well as conserving PCB slots. The available T1 trunk types include:

• Loop Start (DTMF and Dial Pulse)
• Ground Start (DTMF and Dial Pulse)
• Direct Inward Dialing (DID) Wink Start (DTMF and Dial Pulse)
• Direct Inward Dialing (DID) Immediate Start (DTMF and Dial Pulse)
• E&M Tie Line Wink Start (DTMF and Dial Pulse)
• E&M Tie Line Immediate Start (DTMF and Dial Pulse)
• The T1 PCB can connect directly to the telco’s T1 smart jack. However, the local telco may require the installation of a separately-purchased Channel Service Unit (CSU) between the smart jack the T1 PCB.
• The T1 PCB connects to the telco’s T1 smart jack or your CSU using a standard straightthrough CAT 5 cable.
• Maximum 2 per system
• Provides 24 conventional, DID, and/or E&M trunks
• Does not include PRI capabilities
• Requires NEC 80025B Expanded Memory CPU
• Requires System Software 03.xx.xx or higher