6
017-950-B1-001, Rev. A (07/2020)
LED Color
Default Rx Range (dBmV)
Default Tx Range (dBmV)
Green
+10 to -10
0 to +50
* Blue
+15 to +10 and -10 to -15
+50 to +55
* Red
>+15 and <-15
>+55
7.0 Alpha
®
DOCSIS
®
3.1 Transponder and Smart AlphaGuard™ LEDs
7.1 Verify Smart AlphaGuard™ operation as indicated below:
*
Blue RF LED indicates Rx/Tx Power at a warning level. Make the necessary RF level adjustments.
*
Red RF LED indicates Rx/Tx Power at an alert level. Make the necessary RF level adjustments.
Smart AlphaGuard
™
LED State and Indications
LED Name
Color
State
Indication
Active
Green
Off
No power to SAG
Solid
Unit is on and communicating with power supply or in Rest mode
Flash (50% on / 50% off)
Actively balancing
Flash (10% on / 90% off)
Powersave mode
STRG A
STRG B
STRG C
STRG D
(ALARMS)
Red
Off
Normal operation
String X not present
Flash (50% on / 50% off
(Minor Alarm)
High delta mean
Check battery alarm
Solid (Major Alarm)
String X missing
All flash (10% on / 90% off)
Stuck relay detected
7.2 Verify Transponder Operation
Table 7-2, Transponder LEDs
Table 7-3, Rx/Tx LEDs
Table 7-1, Smart AlphaGuard LEDs
2. While in self-test mode, use the Smart Display or a true RMS
voltmeter to verify output. Output voltages should appear within
the ranges shown in Table 6-2.
3. To halt/cancel a self-test in progress, press and hold the
TEST
button for one to two seconds or change self-test to OFF in the
Power Config Menu.
4. After successful completion of the self-test, perform a Standby Test
by shutting off the utility breaker and verifying the
Power Supply goes into
STANDBY MODE and supports the load.
5. After the Standby test, reapply AC voltage and verify the unit transfers back to LINE MODE.
Voltage Regulation (% Range)
Voltage Setting
Fine (-2.5%/+1%)
Coarse (-5%/+1%)
89VAC
86.77VAC / 89.89VAC
84.6VAC / 89.89VAC
63VAC
61.43VAC / 63.63VAC
59.85VAC / 63.63VAC
Table 6-2, Voltage Regulation
6.3 Self-Test Operation,
continued
CMM Rx and Tx LED Indications
Step
Communications State
Downstream (DS)
Upstream (US)
Online (OL)
Rx/Tx Power
1
Transponder Initializing/Searching for Downstream DOCSIS
®
channel(s)
Flashing
OFF
OFF
OFF
2
Downstream channel(s) locked, searching for upstream channel(s)
ON
Flashing
OFF
ON (Green)
3
Upstream channel(s) locked, registering with CMTS
ON
ON
Flashing
ON (Green)
4
CMM fully functional, registration complete
ON
ON
ON
ON (Green)
Verify the CMM LEDs behavior is as follows:
When the CMM is fully functional (step 4 in the table above), the Rx/Tx Power LEDs indicate the RF power levels as
follows:
