Manual of Prevail
Rev1.1 190510 www.prevail-catv.com
No. 27-1, Youyi Road, Guali Town, Xiaoshan District, Hangzhou City, Zhejiang Province.
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Display
Comments
Remarks
Set RF MODE
Set RF control mode
MGC and AGC two modes selectable
Set AGC Set MGC
Set RF adjusted value
Adjustable range 0~15dB with MGC mode
Adjustable range -3~+3dB with AGC mode
Set SBS Suppression
Set SBS value
Range 13~19dBm, 0.5dB stepping
Set ITU
Set optical wavelength
Range ±50GHz
Set Channel Distance
Set channel distance
6MHz, 7MHz, 8MHz
Set LASER
Set laser status
ON/OFF
Set IP Address
Set IP address
Set Mask
Set subnet mask
Set Gateway
Set gateway
Set Trap1 Address
Set trap1 address
Set Trap2 Address
Set trap2 address
Set Buzzer Alarm
Set buzzer alarm
ON/OFF
Restore Factory Cfg
Restore factory settings
3.4.4 Alarm Menu
The displayed alarm content
Comment
RF IN Status
HIGH
（
LOW
）
The RF input signal is high (low)
Laser Bais
HIGH
（
LOW
）
The laser bias current is high (low)
Laser TEC
HIGH
The laser cooling current is high
OutPutPower Status
HIGH
（
LOW
）
The output optical power is high (low)
-5V Status
HIGH
（
LOW
）
The -5V voltage is high (low)
+5V Status
HIGH
（
LOW
）
The +5V voltage is high (low)
+12V Status
HIGH
（
LOW
）
The +12V voltage is high (low)
-12V Status
HIGH
（
LOW
）
The -12V voltage is high (low)
+24V Status
HIGH
（
LOW
）
The +24V voltage is high (low)
Laser
OFF
The laser is off
CSO Initialization failed
The CSO initialization is failed
Power invalid
LEFT
（
RIGHT
）
The left (right) power is invalid
4. Installing the WT-1550-EM20 Optical Transmitter
4.1 Receiving and Inspecting
As you unpack your unit, inspect the shipping container and equipment for damage. Save the shipping
material for future use. If the container or the equipment is damaged, notify both the freight carrier and us.
4.2 Mounting WT-1550-EM20
4.2.1 Mounting the EM20 in the Rack
Mounting the EM3O in the standard 19 inch equipment rack:
1. Place the equipment in the rack.
2. Use four screws fixed the mounting lug on the WT-1550-EM20 front panel to the rack.
3. Reliably ground the equipment. The ground terminal is on the rear panel.
4. Visually inspect each key (button) on the front panel to ensure that it is not trapped under the edge of its
hole. If a key is trapped, tap the key to enable it to move freely.
