Contents

CONTENTS
1.0	Warranty Information	3
1.1	Radio and TV Interference	3
1.2	CE Notice	3
1.3	FCC Part 68	4
1.4	Industry Canada Notice	5
1.5	Service	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	8

3.2Line Interface—Connecting the 10/100Base-T

	Ethernet Interface	9
	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	11
	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	Environmental	17
A.8	Dimensions	17
B	Models 2156 and 2157 Series Factory
	Replacement Parts and Accessories	18
C	Models 2156 and 2157 Series Interface Pin Assignment	19
C.1 10/100Base-T Interface		19
	RJ-45	19
C.2 CopperLink Interface		19
	RJ-11	19