Table 26: Site Electrical Wiring Guidelines (continued)
GuidelinesSite Wiring Factor
To reduce or eliminate RFI from your site wiring, do the following:
•
Use a twisted-pair cable with a good distribution of grounding conductors.
•
If you must exceed the recommended distances, use a high-quality twisted-pair cable
with one ground conductor for each data signal when applicable.
Radio frequency
interference
If your site is susceptible to problems with electromagnetic compatibility (EMC), particularly
from lightning or radio transmitters, seek expert advice.
Some of the problems caused by strong sources of electromagnetic interference (EMI)
are:
•
Destruction of the signal drivers and receivers in the device
•
Electrical hazards as a result of power surges conducted over the lines into the equipment
Electromagnetic
compatibility
Chassis Physical Specifications for ACX5400 Routers
The ACX5400 router chassis is a rigid sheet-metal structure that houses the hardware components.
Table 27 on page 66, Table 28 on page 67, and Table 29 on page 67 summarize the physical specifications
of ACX5448, ACX5448-D, and ACX5448-M routers and their components.
Table 27: Physical Specifications for an ACX5448 Router Chassis and FRUs
WeightDepthWidthHeightItem
•
With FRUs installed:
22.48 lb (10.2 kg)
•
With no FRUs
installed: 16 lb
(7.26 kg)
Without fan module and power
supply module (PSM) handles:
20.29 in. (51.53 cm)
With fan module and PSM
handles: 21.81 in.(55.41 cm)
17.26 in.
(43.84 cm)
1.70 in. (4.33 cm)ACX5448
0.35 lb (0.16 kg)3.62 in. (9.19 cm)1.59 in. (4.05 cm)1.62 in. (4.11 cm)Fan module
2.2 lb (1 kg)14.50 in. (36.83 cm)2.23 in. (5.66 cm)1.58 in. (4.01 cm)AC PSM
2.2 lb (1 kg)14.53 in. (36.91 cm)2.23 in. (5.66 cm)1.67 in. (4.24 cm)DC PSM
66
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