Rhino's 4 port FXS module (MOD-4FXS) adds an additional four analog FXS ports to your new or existing Rhino Modular Channel Bank chassis.

Features:

• Immediate, Wink, Loop, Ground, Kewl and three DID start protocols
• Distinctive ring in Loop start mode
• Caller ID enabled in Loop start mode
• 5-year limited warranty

For more information, see the Rhino Modular Channel Bank.