94
C
HAPTER
3: M
ULTIFUNCTIONAL
I
NTERFACE
M
ODULES
Figure 106
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.
c
CAUTION:
Both T1 cable and network interface connector are optional
accessories. Please order them together with the MIM-1T1/MIM-1T1/MIM-4T1 or
MIM-1T1-F/MIM-2T1-F/MIM-4T1-F module. By default, they are not provided.
For the cable pinouts, see
Low-End and Mid-Range Series Routers Cable Manual
.
Connecting the Interface
Cable
c
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;
■
Some protection measures are taken for MIM-1T1/MIM-2T1/MIM-4T1 module.
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.
Step 1: Insert one end of a T1 cable into the RJ-45 connector on the T1 or T1-F
module;
Step 2: Connect the other end of the cable to the device to be connected:
■
directly if the cable is long enough; or
■
after extending the cable if it is not long enough, as shown in the following
figure:
Figure 107
Extending a T1 cable
Step 3: Check the behavior of the LINK LED on the MIM-T1 or MIM-T1-F panel. It
is OFF when the line is faulty and signal is out of synchronization. In this case,
check the link.
Router
DDN, etc
RJ45
Network interface connector
RJ45
Straight-through network cable
RJ45
shielding network cable)
T1 cable (100-ohm straight-through
Summary of Contents for H3C MSR 20
Page 6: ......
Page 20: ...20 CHAPTER 1 OVERVIEW ...
Page 66: ...66 CHAPTER 2 SMART INTERFACE CARDS ...
Page 146: ...146 CHAPTER 3 MULTIFUNCTIONAL INTERFACE MODULES ...
Page 228: ...228 CHAPTER 4 FLEXIBLE INTERFACE CARDS ...
Page 234: ...234 CHAPTER 5 ESM VCPM MODULE ...