The 16 Port E1/T1 Through Coupler Panel provides interconnectivity between 2 x RJ21 Telco connectors and 16 x RJ45/48 connectors. The TOA version is compatible with the AudioCodes Mediant 2000. The wiring is what could be considered Industry Standard. The TOO version is compatible with many manufacturer's equipment. The TTR Version follows the Cisco wiring scheme, equivalent to Cisco 72-5184-01 or Tyco 216344-1. This Through Coupler Panel can be used to Connect a Cisco ASR903 Router to the Alcatel 1511 MAX-C. As the Cisco equipment uses the 0-15 numbering scheme, this panel is available with either 0-15, or 1-16 numbering. The Panel consists of a Black Powder Coated 1U high 19" rack mountable Zintec chassis.