CANOGA PERKINS 2361 T1 Modem - Manual (Page 15)

The EdgeAccess Universal Chassis System
2361 Modem Users Manual 1-7
1.5 2361 Modem Operating At E1 Rate
While the 2361 modem is a T1 modem, it can also function in E1 mode. This can be
accomplished by changing a switch position on the Main Module. For Rackmount modems,
remove the modem from the chassis, and locate the T1/E1 switch on the board. Then, change the
switch to E1.
For a standalone modem, the switch is accessible by removing the ELIM or OLIM, reaching
inside between the ELIM and the OLIM, and toggling the switch.
Figure 8. T1/E1 Switch on a Standalone Modem
1.6 Applications
The modem's general purpose is to extend the reach of a pair of T1 signal over fiber optic cables,
as shown below:
• Payloads pass through without regard to codes or frames.
• In Redundant applications, continuous Bit Error Rate Testing on the inactive modem is
performed.
Figure 9. The 2361 Modem Extends a T1 Signal Over Fiber Optic Cables
Applications include:
• Carrier Applications
• Campus Voice Applications
• Campus Data Applications
Figure 10 depicts 2361 modem applications.
T1 Signal,
Router,
PBX, etc. T1 Signal,
Router,
PBX, etc.