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TABLE 1 Connectors and ground point on the T811-CM
No.
Label
Description
1
MAC
Labels include separate addresses for
Address
the internal AP and CM.
label
location
2
Coaxial
F type, connects to the CMTS at the
cable
head end using a tap on the plant, and
connector
provides AC POC to the T811-CM. For
more information, refer to "Powering
the T811-CM with POC."
3
Optional
The T811-CM is normally earth-
External
grounded by the cable strand.
Ground
However, if the cable strand is not
Earth Point
earth grounded, then connect an
external earth ground to the T811-CM
using this screw-and-washer set.
LEDs and Ports
The following figure illustrations the locations of the LEDs
and ports on the T811-CM, and the table below provides
descriptions of each feature.
Use the eight LEDs to check the status of the access point
and cable modem.
FIGURE 2 T811-CM LEDs and ports
TABLE 2 T811-CM LEDs and Ports
N
Label
Description
o.
1
POWER
Off: AP off.
Blinking red: Boot up in process.
Solid Green: AP on.
Copyright
©
2018 ARRIS Enterprises LLC. All rights reserved.
Published October 2018, Part Number 800-71744-001 Rev C
TABLE 2 T811-CM LEDs and Ports (continued)
2
CM DS
Blinks when searching for downstream
(DS), then solid when DS is locked.
3
CM US /
Off when upstream (US) is searching,
SFP
and then blinks as upstream power is
Activity
increased/ranged and then solid when
upstream is locked.
In SFP mode, this LED blinks with SFP
Activity.
4
ONLINE
Off: No backhaul connection detected.
Blinking green: Obtaining IP address and
configuration file.
Solid green: Cable Modem backhaul
Online.
Solid amber: SFP fiber backhaul Online.
5
CTL
On when the Access Point is being
managed by a Ruckus Wireless
controller.
6
AIR
Off: The Access Point is operating in
standalone mode, or the uplink is
through its wired Ethernet interface. The
wireless uplink interface is down.
Solid green: The AP is operating as a
Mesh AP (MAP), and the wireless signal
to its uplink AP is good.
7
2.4 GHz
Off: The 2.4GHz WLAN service is down.
Solid amber: The 2.4GHz WLAN service is
up. No clients are associated.
Solid green: The 2.4GHz WLAN service is
up and at least one client is associated.
8
5 GHz
Off: The 5GHz WLAN service is down.
Solid amber: The 5GHz WLAN service is
up, but no clients are associated/
connected.
Solid green: The 5GHz WLAN service is up
and at least one client is associated.
9
USB Port
USB port for IoT devices
Max Dimensions: 6 cm x 2 cm x 1.1 cm
Max Weight: 8 ounces
Max Power: 0.5 W
Interface: USB 2.0 Type-A plug
TABLE 2 T811-CM LEDs and Ports (continued)
10
Eth Port /
1 x 10/100/1000 PoE Out port (802.3at)
Reset
Supports PoE PSE (802.3at) 30W
Button
Reset Button: Depress quickly to reboot
both the AP and the CM (4 sec or less).
Press and hold for 5-10 seconds to
perform a full reset to factory default
settings.
Connector: RJ-45
11
SFP Fiber
Supports the following types of SFP
interface
modules:
GPON
EPON
1000BaseLX
See the Installation Guide for more
details.
Ports for Cable Attenuation and
Impedance Matching
The following figure shows the two ports on the T811-CM
that are used for attenuation and impedance matching.
For details on how to perform the attenuation and
impedance matching see the Installation Guide.
FIGURE 3 Attenuation and impedance ports
1. Attenuation port
2. Impedance port
Mounting the T811-CM
To mount the T811-CM assembly on a cable strand, you
need to secure the cable clamps that are attached to the
strand interface to the cable strand.
1. Slightly loosen the nuts that fasten the two cable
clamps to the strand interface, enough for the strand
support cable to fit into the cable clamps.
2. Place the cable clamps on the strand support cable.
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