Verilink XEL XSP-100 SHARK IAP (9SA-USRS-9.0R1.02) Product Manual - Manual (Page 19)

Chapter 1: Introduction
SHARK™ IAD User's Guide XEL P/N & Release: 9SA-USRS-9.0R1.02 Chapter 1-9
The Data Interface
There is one 10/100BaseT data interface for the LAN side of the router. There
are two slots for additional LAN side interfaces that may be any combination of
T1 or V.35 interfaces.
The Voice Interface The SHARK™ IAD can accommodate up to three voice module slots, each
supporting eight analog voice circuits. Thus up to 24 total analog voice access
circuits can be supported, upgraded in increments of eight. The current
interfaces are the FXS/DPO and FXO/DPT modules.
Voice modules are optional. Should the end user have no need for analog voice
circuits (either because they need only data or has a digital interface to their
PBX), no modules will need to be installed.
Conclusion Taken as a whole, XEL's SHARK™ IAD provides flexible voice and data
service delivery for carriers and end-users, meeting multiple applications,
requirements and providing cost-effective service migration as requirements
evolve.