Nortel Networks Passport 4400 - Manual (Page 80)

Analog Voice Modules Passport 4400 Hardware Installation Manual
8-2
Figure 8-2. Rear View of Universal Analog Voice Module
Figure 8-3. Universal Analog Voice Module with Two Interface Modules Installed
Dual Channel Universal Analog Voice/Fax Module
FXS and FXO Interface Modules
E&M Interface Module
Interface Module
Back Panel