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CONTENTS
1.0 Warranty Information ................................................................. 3
1.1 Compliance................................................................................... 3
EMC Compliance:......................................................................... 3
Safety Compliance: ...................................................................... 3
PSTN Compliance:....................................................................... 3
1.2 Radio and TV Interference (FCC Part 15) .................................... 3
1.3 CE Declaration of Conformity ....................................................... 4
1.4 Authorized European Representative........................................... 4
1.5 Service.......................................................................................... 4
1.6 Safety When Working With Electricity .......................................... 5
2.0 General Information.................................................................... 6
2.1 Features........................................................................................ 6
2.2 Description.................................................................................... 6
3.0 Installation................................................................................... 8
3.1 Connecting the Twisted-Pair Line Interface.................................. 9
3.2 Line Interface—Connecting the 10/100Base-T Ethernet Interface..
10
Connecting the 10/100Base-T Ethernet Port to a Hub or PC..... 10
3.3 Connecting Power ...................................................................... 11
3.4 Power Input Connector............................................................... 11
External AC universal power supply........................................... 12
External 48 VDC power supply................................................... 12
3.5 Console Port............................................................................... 13
4.0 Operation................................................................................... 14
4.1 Front Panel LED Status Monitors ............................................... 14
A
Specifications ........................................................................... 15
A.1 General Characteristics .............................................................. 15
A.2 WAN Characteristics ................................................................... 15
A.3 Ethernet ....................................................................................... 15
A.4 Extension distance and rate ....................................................... 16
A.5 LED Indicators ............................................................................ 17
A.6 Power and Power Supply Specifications .................................... 17
A.7 Temperature Range .................................................................... 17
A.8 Humidity ...................................................................................... 17
A.9 Dimensions ................................................................................. 17
B
Model 2157R Series Factory
Replacement Parts and Accessories...................................... 18
C
Model 2157R Series Interface Pin Assignment...................... 19
C.1 10/100Base-T Interface .............................................................. 19
RJ-45.......................................................................................... 19