3com 3C13701 User Manual
3Com Router 5000 and Router 6000 v2.41
Module Guide
Module Guide
Chapter 3
Multifunctional Interface Modules (Router 5000)
3-46
Note:
AIS = Alarm indication signal; LFA = loss of frame alignment; RAI = Remote alarm indication
3.10.4 Interface Cable
Interface cables (T1 cables) for modules are 100-ohm straight-through shielding
network cables, as shown in the following figure:
network cables, as shown in the following figure:
Figure 3-51 T1 cable
In addition, you may use a network interface connector to extend a T1 cable. Both
ends of the connector are RJ-45 jacks that can connect two network cables.
ends of the connector are RJ-45 jacks that can connect two network cables.
Caution:
Both T1 cable and network interface connector are optional accessories. You should order them
together with the module. Otherwise, they will not be provided.
together with the module. Otherwise, they will not be provided.
3.10.5 Connecting the Interface Cable
Caution:
Read the mark identifying a port before you connect a cable to it, making sure it is the
correct port. Wrong connection tends to damage interface modules and even the
Router;
Router;
Some protection measures are taken for Router 2-Port CT1/PRI MIM. Still, you are
recommended to install a special lightning arrester at the input end of the cable
leading to the outdoors in order to protect the line against lightning strikes more
efficiently.
leading to the outdoors in order to protect the line against lightning strikes more
efficiently.