Datasheet
© 2012 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 12 of 18
Q. What serial port does the Cisco 819 support?
A. Cisco 819 ISRs support a 12-in-1 serial port, which you can attach to sync, async, and bisync interfaces.
Please refer to the Cisco Machine-to-Machine IOS Gateway (Cisco 819 ISRs) data sheet:
http://www.cisco.com/en/US/docs/routers/access/interfaces/ic/hardware/installation/guide/ser_hwic.html.
Q. Does the Cisco 819 ISR 12-in-1 serial port support the RS-485 protocol?
A. No. It requires interface converters to support the RS-485 protocol. Some examples of those converters follow:
Schweitzer Engineering Labs:
http://www.selinc.com/sel-2886.htm
ICP-DAS USA:
http://www.l-com.com/item.aspx?id=9165&cmp=Similar
Megatel Industries Corp:
http://www.l-com.com/productFamily.aspx?id=2036&cmp=MI
Q. What are the environmental operating temperature and altitude for the Cisco 819?
A. Nonhardened Cisco 819G routers operate at 32 to 104°F (0 to 40°C), and can operate at 104°F (40°C) up to
5000 feet. Hardened Cisco 819HG ISRs operate at –13 to 140°F (–25 to 60°C), and can operate at 140°F
(60°C) up to 5000 feet. The derate maximum operating temperature is 1.5°C per 1000 feet above 5000 ft.
Q. What is the cold start temperature of Cisco 819 hardened ISRs?
A. The Cisco 819 hardened router has clod start temperature at –15°C. With 5°C tolerance, if the Cisco 819
hardened router started at temperature below –10°C, the radio will be off and will be turned on automatically if
the modem temperature is at –10°C or if you reset the modem when the modem temperature is at –20°C.
Q. What are the operating conditions for the Cisco 819 Hardened ISRs?
A. Hardened Cisco 819HG ISRs operate at the following conditions:
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Noncondensing humidity: 95%
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IP41 per IEC 60529 for Vertical Falling Water
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Pollution 3 for Dust
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Please refer to the Cisco Machine-to-Machine IOS Gateway (Cisco 819) data sheet for vibration and shock
information.
Q. What compliance standards are supported by Cisco 819 ISRs?
A. Cisco 819 ISRs meet the following compliance standards: Safety, Telecom, Electromagnetic Compatibility,
and Radio. Please refer to the Cisco Machine-to-Machine IOS Gateway (Cisco 819 ISRs) data sheet for
more details.
Q. What railway related standards are supported by Cisco 819 Hardened ISRs?
A. Cisco 819 Hardened ISRs meet EN50155, EN50121-3-2, and EN50121-4.