Table 65: T640 Physical Specifications (continued)
ValueDescription
23 lb (10.5 kg) eachTwo-input 160-A DC power supply
weight
25 lb (11.3 kg) eachThree-input 240-A DC power
supply weight
26.6 lb (12.0 kg)Four-input 240-A DC power
supply weight
39.7 lb (18.0 kg)Six-input DC power supply weight
1 lb (0.5 kg)Air filter weight
6.8 lb (3.0 kg) eachSIB weight
5 lb (2.3 kg) eachCB weight
1.9 lb (0.9 kg) eachSCG weight
10 lb (4.5 kg)Rear fan tray weight
18.6 lb (8.4 kg)Front fan tray weight
5 lb (2.3 kg)Cable management weight
Related
Documentation
T640 Router Description on page 3•
• T640 Chassis Description on page 15
• T640 Installation Safety Guidelines on page 511
T640 Rack Requirements
The T640 Core Router can be installed in a rack or cabinet. Many types of racks are
acceptable, including four-post (telco) racks and open-frame racks. An example of an
open-frame rack is shown in Figure 52 on page 121.
The router is designed for installation in a 19-in. rack as defined in Cabinets, Racks, Panels,
and Associated Equipment (document number EIA-310-D) published by the Electronics
Industry Association.
With the use of adapters, the router is designed to fit into a 600-mm-wide rack, as defined
in the four-part Equipment Engineering (EE); European telecommunications standard for
equipment practice (document numbers ETS 300 119-1 through 119-4) published by the
European Telecommunications Standards Institute (http://www.etsi.org). Use approved
wing devices to narrow the opening between the rails.
Copyright © 2017, Juniper Networks, Inc.120
T640 Core Router Hardware Guide
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