Cisco Systems CGR1120K9 Radio Frequency Interface, DC Power Consumption, Module Power States

Hardware Overview

Radio Frequency Interface

The Radio Frequency (RF) interface consists of two QMA connectors on the faceplate labeled MAIN and AUX. Both antennas are mandatory; it both transmits and receives RF. The second AUX QMA connector is for the optional RX Diversity.

DC Power Consumption

The average DC power consumption according to the duty cycle is as follows:

Table 6	Power Specifications WiMAX 1.8 MHz Module
Transmit Duty Cycle
(Tx/Rx)		1 Transmit Spatial Stream	2 Transmit Spatial Streams
40%/60%		3.7 W	5.3 W

Temperature Monitoring State Machine

The state machine in the WiMAX module monitors the embedded module temperature. The command show environment temperature shows the module temperature in Celsius. For example, the temperature sensor of the WIMAX module shows as 46-degrees Celsius.

# show module
Mod Ports Module-Type	Model	Status

-------- ----------------------------------- ------------------ ----------

1	0	CGR1000	Supervisor Module			CGR1120/K9	active *
2	9	CGR1000	Ethernet Module			CGR1000	ok
3	1	Connected		Grid	Module - IEEE 802.16	CGM-WIMAX-1.8GHZ	ok
4	1	Connected		Grid	Module - IEEE 802.15	CGM-WPAN-FSK-NA	ok

#sh environment temperature Temperature:

--------------------------------------------------------------------

Module Sensor	MajorThresh	MinorThres	CurTemp	Status
	(Celsius)	(Celsius)	(Celsius)

--------------------------------------------------------------------

1	Sensor0	75	60	44	Ok
3	Sensor0	75	60	46	Ok
4	Sensor0	75	60	46	Ok

Module Power States

The module has the following power states:

•Normal mode—Module is active. Receive and Transmit modes are possible. In this state:

–The module is fully powered.

–The module is capable of placing/receiving calls or establishing data connections on the wireless network.

–The USB interface is fully active.

Cisco Connected Grid Modules for CGR 1000 Series—WiMAX Installation and Configuration Guide

10 OL-26236-03