Rhino's 4 port FXS module (MOD-4FXO) adds an additional four analog FXO ports to your new or existing Rhino Modular Channel Bank chassis.
Features:
- Immediate, Wink, Loop, Ground, Kewl and three DID start protocols
- Complex impedance support
- Caller ID capable
- 5-year limited warranty
For more information, see the Rhino Modular Channel Bank.