Huawei Quidway AR 28 Series Installation Manual page 65

Quidway AR 28 Series Routers Installation Manual
Note:
For the T1 module, corresponding serial interface shall be created after you use the
timeslot bundling command on the Controller T1 interface. See VRP3.4 Operation
Manual for details.
2) T1 interface cable
T1 interface matches 100-ohm standard shielded cable. See the following table:
Figure 4-30 T1 interface cable
For the pinouts of T1 interface cable, see Low-End and Mid-Range Series Routers
Cable Manual.
You can also choose to use network connector assembly, for extending two T1
interface cables.
Note:
T1 interface cable and network connector assembly are optional, so you have to order
them as needed when purchasing the AR 28-14.
3) Connecting T1 interface cable
Caution:
Check the interface mark before connection to avoid cable mis-insertion and router
damage.
When the T1 interface cable is routed outdoors, you need use the special lightning
protection unit at the input end to prevent possible damage.
Step 1: Insert one end of the T1 interface cable into the E1 interface of the router.
Step 2: Insert the other end to the peer device.
If one cable is enough in length, insert the other end to the peer device.
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Chapter 4 Installation of the Router