This module will alow you to add up to 12 lines. Each line card handle 4 lines(not included). The Fiber Trunk Module is used to add trunk modules to the core Modular ICS by a fiber cable. Each Fiber Trunk Module holds up to three Trunk Cartridges. There is one emergency transfer port per Trunk Module.
Supported cartridges: All analog trunk cartridges are supported; Digital Trunk Interface (DTI) cartriges and the Services Cartridges are not supported in the Fiber Trunk Module.
Requires either the 6-port or 2-port slim fiber expansion card, sold separately.
One year warranty. Includes mounting bracket and fiber cable.