
S4TEF10xx-10x 
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*Typical maximum cable distance. Actual distance is dependent upon the physical characteristics of the network. (TX) = transmit, (RX) = receive
Installation --  Continued
Configuration Switches
The 
•Set #1 sets the T1/E1 options.
•Set #2 sets the serial options.
Switch Set #1 (upper): T1/E1 Options
Installation
Due to proprietary communication over fiber, the S4TEF media converter must be installed in pairs.
Switch Set #2 (lower): Serial Options
Use a flat blade screwdriver to set the switches as shown:
Key:
up down
Copper and Fiber Ports
The figure below illustrates the locations of the fiber port, the RS-232  data port, and the four (4) T1/E1 ports.
T1/E1 ports
Switch Set #1 - T1/E1 Options
1, 2, 3, 4 - Line Settings
Switches 1, 2, 3, and 4 are used to setup the line settings for the T1/E1 ports. The selected setting applies to all four (4) T1/E1 channels.
1  | 2  | 3  | 4  | 1  | 2  | 3  | 4  | 
LNK AIS LNK AIS LNK AIS LNK AIS  | 
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DS1, 100 ohm, 0 dB LBO  | |||||||
DS1, 100 ohm,   | 
1  | 2  | 3  | 4  | 
PWR  | 
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  | DS1, 100 ohm,   | |
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LKF  | 
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TX  | RX  | DS1, 100 ohm,   | ||
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fiber port | 
 | E1, 120 ohm  | |
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NOTE: An   | 
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included with the   | J1, 110 ohm,   | 
2  | techsupport@transition.com   | 3  |