RAD Data comm IPmux-11 Manuel D’Utilisation

Installation and Operation Manual 

Chapter 1  Introduction 

IPmux-11 Ver. 2.00 

Overview 

1-3 

The data stream coming from the E1 or T1 port is converted into IP packets that 
are transported over the Fast Ethernet ports, and vice versa. 
TDM bytes are encapsulated in a UDP frame that runs over IP and over Ethernet.  
The number of TDM bytes in an IP frame is configurable for throughput/delay 
tradeoff. 
Each device has a single IP address (host IP). A configurable destination IP address 
is assigned to the IP packets. IP ToS field support can be configured for IP level 
priority.  
The Ethernet ports can be either UTP or fiber.  
•  Fiber option – standard 100BaseFx full-duplex port (see 

). 

•  UTP option – A standard 10/100BaseT half/full duplex port with 

autonegotiation and automatic crossover support. If autonegotiation is 
disabled, Ethernet mode should be configured. 

[nm] 

[μm] 

[dBm] 

[dBm] 

 

[dB/km] 

[dBm] 

     Min 

Max 

 Min 

Max 

 

1310 62.5/125 

multimode 

LED -19 

-14 

-32 1 

4 

10* 

1310 9/125 

single 

mode 

Laser -15 

-7 

-34 0.5 

0.8 

16* 

*   Permitted fiber optic cable length differs according to fiber characteristics, 

splices, and connectors.  

 

To calculate optical budget:  
Optical Budget [dB] =  
⏐Receive Sensitivity⏐–⏐Optical Power⏐–3 (Aging) – Connectors/Patch Panels Loss 

 

To calculate distance: 
Distance = Optical Budget/Maximum Loss 

IPmux-11 encapsulates TDM data with MPLS labels for transporting it over MPLS 
networks (TDMoMPLS). Saving up to 24 bytes of overhead in comparison to the 
standard TDMoIP encapsulation, TDMoMPLS is ideal for bandwidth-sensitive 
networks.  

E1/T1 operation modes are:  
•  Unframed E1/T1 over UDP over IP over Ethernet 
•  Fractional E1/T1 over UDP over IP over Ethernet 
•  Fractional E1/T1 with CAS over UDP over IP over Ethernet.