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CONTENTS
1.0 Warranty Information................................................................. 3
1.1 Radio and TV Interference............................................................ 3
1.2 CE Notice...................................................................................... 3
1.3 Service.......................................................................................... 4
2.0 General Information.................................................................... 5
2.1 Features........................................................................................ 5
2.2 Description.................................................................................... 5
3.0 Installation................................................................................... 7
3.1 Connecting the Twisted-Pair Line Interface.................................. 7
3.2 Connecting 10Base-T Ethernet Port to PC (DTE)........................ 8
3.3 Connecting 10Base-T Ethernet Port to Hub (DCE)...................... 8
3.4 Connecting Power........................................................................ 9
3.5 Power Input Connector................................................................. 9
External AC universal power supply............................................. 9
External 48 VDC power supply................................................... 10
4.0 Operation................................................................................... 11
4.1 Front Panel LED Status Monitors............................................... 11
4.2 Test Modes................................................................................. 13
Remote Digital Loopback (RDL)/V.52 (BER).............................. 13
A Specifications........................................................................... 14
A.1 General Characteristics ..............................................................14
A.2 WAN Characteristics ...................................................................14
A.3 Ethernet .......................................................................................14
A.4 Distance ......................................................................................14
A.5 Diagnostics .................................................................................14
A.6 LED Status Indicators .................................................................14
A.7 Connectors .................................................................................15
A.8 Power Supply ..............................................................................15
A.9 Temperature Range ....................................................................15
A.10 Altitude ........................................................................................ 15
A.11 Humidity ...................................................................................... 15
A.12 Dimensions .................................................................................15
A.13 Weight ......................................................................................... 15
B Models 2155 Factory
Replacement Parts and Accessories...................................... 16
C Models 2155 Interface Pin Assignment.................................. 17
C.1 10Base-T Interface .....................................................................17
RJ-45.......................................................................................... 17
C.2 CopperLink Interface ..................................................................17
RJ-45.......................................................................................... 17