Cisco 2691 Series, Быстрый старт

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12
Installing on Desktop
Caution If you place the Cisco router on a desktop, do not place anything that weighs more than 10 pounds (4.5 kilograms)
on top of the chassis.
Grounding the Chassis
You must connect the chassis to a reliable earth ground; the ground wire must be installed in accordance with local electrical
safety standards.
• For NEBS-compliant grounding, use size AWG 6 (13 mm
2
) wire and the ground lug provided in the accessory kit.
• For NEC-compliant grounding, use size AWG 14 (2 mm
2
) or larger wire and an appropriate user-supplied ring terminal.
•
For EN/IEC 60950-compliant grounding, use size AWG 18 (1 mm
2
) or larger wire and an appropriate user-supplied ring
terminal.
To connect the chassis to a reliable earth ground, perform the following steps:
Step 1
Strip one end of the ground wire to the length required for the ground lug or terminal.
• For the NEBS ground lug—approximately 0.75 in. (20 mm)
• For user-provided ring terminal—as required
Step 2
Crimp the ground wire to the ground lug or ring terminal, using a crimp tool of the appropriate size.
Step 3
Attach the ground lug or ring terminal to the chassis as shown in Figure 6 or Figure 7. For the ground lug, use the two
screws with captive locking washers provided. For a ring terminal, use one of the screws provided. Use a number 2
Phillips screwdriver, and tighten the screws to a torque of 8 to 10 in-lb (0.9 to 1.1 N-m).
Step 4
Connect the other end of the ground wire to a grounding point at your site.
Figure 6 NEBS-Compliant Chassis Ground Connection Using Ground Lug
Figure 7 Chassis Ground Connection Using Ring Terminal
Ground lug
attachment
72228
EN
ASYNC
ASYNC 8-15
ASYNC 0-7
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ASYNC 24-31
ASYNC 16-23
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SEE MANUAL
BEFORE IN
STALLATION
CONSOLE
AUX
FAST ETHER
NET 0/1
FAST ETHER
NET 0/0
AL
CD
LP
RD
TD
SEE MANUAL
BEFORE IN
STALLATION
DSU
56K
AL
CD
LP RD
TD
SEE MANUAL
BEFORE IN
STALLATION
DSU
56K
ACT
100 Mbps
LINK
ACT
100 Mbps
LINK
CF1
CISCO2691
Ring terminal
attachment
103008
EN
ASYNC
ASYNC 8-15
ASYNC 0-7
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ASYNC 24-31
ASYNC 16
-23
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SEE MANUAL
BEFORE IN
STALLATION
CONSOLE
AUX
FAST ETHER
NET 0/1
FAST ETHER
NET 0/0
AL
CD
LP
RD TD
SEE MANUAL
BEFORE IN
STALLATION
DSU
56K
AL
CD
LP RD
TD
SEE MANUAL
BEFORE IN
STALLATION
DSU
56K
ACT
100 Mbps
LINK ACT
100 Mbps
LINK
CF1
CISCO2691