Item Description:High Density Analog Voice Module for ISR - SM-X-16FXS/2FXO=
Cisco Single-Wide High Density Analog Voice Service Module With 16 FXS And 2 FXO - For Voice - 16 x RJ-21 FXS, 2 x RJ-21 FXO - Twisted Pair --
High Density Analog Voice Module for ISR - SM-X-16FXS/2FXO=
Image, Data Sheet & Marketing Description may differ from the actual product of part# SM-X-16FXS/2FXO=