Juniper BX7000, Hardware Manual, Page: 26 / 138

CHAPTER 1: BX7000 Multi-Access Gateway Overview
8 Hardware Components Copyright © 2010, Juniper Networks, Inc.
Ethernet Ports
Five Ethernet ports are located in the lower right of the gateway (see Figure 6 on page 9). The
Ethernet ports can be used as either data ports or management ports.
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Three (10/100/1000Base-TX) copper Ethernet ports labeled ETHERNET 0 , ETHERNET 1 , and
ETHERNET 2 .
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Two (1000 Base-X-SFP) fiber-optic Gigabit Ethernet ports with small form-factor pluggable
transceivers (SFPs) labeled ETHERNET 1 and ETHERNET 2 .
Table 3: T1/E1 Ports
Description
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16 RJ-45 ports which can be configured either as T1 or E1
Hardware features
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16 T1/E1 ports supporting ATM, IMA, High-Level Data
Link Control (HDLC)
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LEDs for status indication; for more information, see
LEDs
on page 8
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T1 framing: super frame (SF) and extended super frame
(ESF)
z
E1 framing: G.703
z
G.704—Channel Associated Signaling Multiframe
Format
z
G.704-no-crc—Basic E1 framer format without CRC
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Per-port loop timing
Software features
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Integrated support for G.703 unframed mode and G.704
Channel Associated Signaling Multiframe Format; and
G.704-no-crc
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Encapsulations:
− High-Level Data Link Control (HDLC)
− Asynchronous Transfer Mode (ATM)
− Inverse Multiplexing over ATM (ATM-IMA)
−
Point-to-Point Protocol (PPP)
−
Transparent (Trans)
Cables and connectors 16 RJ-45 connectors (one per port)—RJ-45 to RJ-45
interface cable, Category 3
LEDs Two rectangular single color LEDs for each T1/E1 port
Link LED
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Green is lit in the following conditions:
−
Admin-state is up and there is traffic through the port
−
Admin-state is up and link is up
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Green is off in one of the following conditions:
−
Error in traffic
−
Link is down
−
Admin-state down
Error LED
z
Yellow is lit in the following error conditions:
−
Admin-state is up and error in traffic
−
Admin-state is up and link is down
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Yellow is off during admin-state down
Alarms, errors, and events
z
Alarm Indication Signal (AIS, YLW)
z
Excessive zeros (EXZ)
z
Loss of frame (LOF), Loss of signal (LOS)
z
Controlled Slip (CS)