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ACX2000 Chassis Components

Front Panel of an ACX2000 Router

The front panel of an ACX2000 router consists of the following components (see Figure 1):

  • Chassis status LED labeled SYS

  • DC power terminals

  • Two USB ports for upgrading Junos OS

  • Management Ethernet port labeled MGMT

  • Console or auxiliary port labeled CONSOLE/AUX

  • Alarm contact port labeled ALARM—accepts a DE-15 alarm cable

  • External clocking input port labeled EXT REF CLK IN

  • External clocking ports supporting 1PPS and 10MHz input and output

  • Network ports and corresponding status LEDs:

    • Sixteen T1/E1 ports labeled 0/0/0 through 0/0/15

    • Six Gigabit Ethernet RJ-45 ports labeled 0/1/0 through 0/1/2 and 0/1/4 through 0/1/6

    • Two 65-W PoE Gigabit Ethernet ports labeled 0/1/3 POE and 0/1/7 POE that provide electrical current to devices—such as IP phones, wireless access points, and security cameras—through network cables. These ports comply with IEEE 802.3af (PoE) and IEEE 802.3at (PoE+).

    • Two Gigabit Ethernet (GE) ports labeled 0/2/0 and 0/2/1 that accept SFP transceivers

    • Two 10-Gigabit Ethernet (XE) ports labeled 0/3/0 and 0/3/1 that accept SFP+ transceivers

Figure 1: Front Panel of the ACX2000 RouterFront Panel of the ACX2000 Router
  1
DC terminals
  8
10-Gigabit Ethernet SFP+ ports
  2
Management Ethernet port
  9
Gigabit Ethernet SFP ports
  3
Console or auxiliary port
10
External clocking ports
  4
Alarm contact port
11
External clocking input port
  5
T1/E1 and RJ-45 Gigabit Ethernet network ports
12
USB ports
  6
PoE Gigabit Ethernet ports
13
System LED
  7
ESD point
14
Grounding terminals

Front Panel of an ACX2100 Router

The front panel of an ACX2100 router consists of the following components (see Figure 2 and Figure 3):

  • Chassis status LED labeled SYS

  • AC power inlets or DC terminals

  • Two USB ports for upgrading Junos OS

  • Management Ethernet port labeled MGMT

  • Console or auxiliary port labeled CONSOLE/AUX

  • Alarm contact port labeled ALARM—accepts a DE-15 alarm cable

  • External clocking input port labeled EXT REF CLK IN

  • External clocking ports supporting 1PPS and 10MHz input and output

  • Network ports and corresponding status LEDs:

    • Sixteen T1/E1 ports labeled 0/0/0 through 0/0/15

    • Four Gigabit Ethernet (GE) ports labeled 1/0/0 through 1/0/3

    • Combination (COMBO) ports labeled 1/1/0 through 1/1/3, either:

      • Four Gigabit Ethernet RJ-45 ports

      • Four Gigabit Ethernet SFP ports

    • Two Gigabit Ethernet (GE) ports labeled 1/2/0 through 1/2/1 that accept SFP transceivers

    • Two 10-Gigabit Ethernet (XE) ports labeled 1/3/0 and 1/3/1 that accept SFP+ transceivers

Figure 2: Front Panel of the AC-Powered ACX2100 RouterFront Panel of the AC-Powered ACX2100 Router
  1
AC inlets
  9
Ten-Gigabit Ethernet SFP+ ports
  2
Management Ethernet port
10
Gigabit Ethernet SFP ports
  3
Console or auxiliary port
11
Combination Gigabit Ethernet SFP ports
  4
Alarm contact port
12
External clocking ports
  5
T1/E1 network ports
13
External clocking input port
  6
Gigabit Ethernet network ports
14
USB ports
  7
Combination Gigabit Ethernet RJ-45 ports
15
System LED
  8
ESD point
 
Figure 3: Front Panel of the DC-Powered ACX2100 RouterFront Panel of the DC-Powered ACX2100 Router
  1
DC terminals
  9
Ten-Gigabit Ethernet SFP+ ports
  2
Management Ethernet port
10
Gigabit Ethernet SFP ports
  3
Console or auxiliary port
11
Combination Gigabit Ethernet SFP ports
  4
Alarm contact port
12
External clocking ports
  5
T1/E1 network ports
13
External clocking input port
  6
Gigabit Ethernet network ports
14
USB ports
  7
Combination Gigabit Ethernet RJ-45 ports
15
System LED
  8
ESD point
16
Grounding terminals

ACX2000 and ACX2100 Alarm Contact Port

The ACX2000 and ACX2100 router has four external alarm contacts (also known as potential free contacts) for connecting the router to external alarm devices. The port labeled ALARM uses a 15-pin D-type connector. The external alarm contact has 15 pins that accept a single core wire from external alarm devices. A DE15 alarm cable is required to connect the ACX2000 and ACX2100 router to external alarm devices. Use the gauge wire appropriate for the external device that you are connecting.

Whenever a system condition triggers an alarm, the alarm relay contacts are activated, which in turn activates the external alarm devices. The alarm setting is open or closed.

You can connect and configure two output alarms and four input alarms. Two additional output alarms are reserved and are used to indicate major and minor system alarms. Each output and input alarm has two contacts for connecting the router to external alarm devices. Contact 1 of each alarm can be configured as Normally Open [NO] or Normally Closed [NC] through the CLI. Contact 2 of each alarm functions as a reference [REF] or negative potential terminal for Contact 1 of the corresponding alarm and provides a current path for external alarm devices. Table 6 describes the functions of the alarm contacts.

Table 6: Alarm Relay Contact Functions

Contact Name

Contact Name

Function

Contact 1

Normally Open (NO)

Current is not flowing through Contact 1 and Contact 2 [REF] when operating normally. When the current flows, the closed alarm is generated.

Normally Closed (NC)

Current is flowing through Contact 1 and Contact 2 [REF] when operating normally. When the current stops flowing, the open alarm is generated.

Contact 2

Reference (REF)

Provides the current path for the external alarm-reporting device and functions as a reference or negative potential terminal for Contact 1.

Figure 4 shows an example of a wiring diagram for a simple output alarm-reporting device. In this case the device is a light bulb that illuminates when the device encounters a condition that activates the red alarm LED and relay contacts. The alarm relay contacts can also be used to activate other devices such as bells or buzzers.

Figure 4: Sample Output Alarm-Reporting DeviceSample Output Alarm-Reporting Device

Figure 5 shows an example of a wiring diagram for a simple input alarm-reporting device. In this case the push button switch is an alarm sensor that triggers an input alarm when a door-open condition occurs.

Figure 5: Sample Input Alarm-Reporting DeviceSample Input Alarm-Reporting Device

Clocking Ports on the ACX2000 and the ACX2100 Router

The clocking ports acquire the clock source and synchronize communication over time-division multiplexing (TDM) interfaces in the router. The clocking ports distribute a synchronized clock signal throughout the router by locking onto a clock signal originating from an internal clock source or by connecting to an external clock source.

The reference clock inputs can be T1/E1 line clocks, Ethernet recovered clocks, IEEE 1588v2 recovered clocks, or xDSL NTU-R timing. Externally available reference clocks are BITS T1/E1 rate clocks, 1 PPS, and 10 MHz. The four SubMiniature B (SMB) connectors and one RJ-48 port on the front panel of the router connect to external clock signal sources. The clocking ports provide the synchronized output clocks from any one of the above reference inputs based on the clock’s priority.

Internal clock sources within the router include:

  • External building-integrated timing system (BITS) timing port

  • 10-MHz timing connectors (one input and one output)

  • 1.544-MHz/2.048 MHz T1/E1 (RJ-48) ports for timing input or output

  • 1 pulse-per-second (PPS) connectors (one input and one output)

  • Time-of-Day (TOD) RS232 port

  • SyncE support on RJ-45/SFP ports as timing input or output

  • Packet timing (IEEE 1588v2) includes:

    • Timing input when configured as Ordinary Clock (OC) or Boundary Clock (BC)

    • Timing output when configured as BC

LEDs on ACX2000 and ACX2100 Routers

Unless otherwise specified, the information about LEDs applies to both ACX2000 and ACX2100 routers.

System LED on the Front Panel

One bicolor LED labeled SYS indicates the status of the router. Table 7 describes the system LED in more detail.

Table 7: System LED on the Front Panel

Label

Color

State

Description

SYS

Green

Blinking

Router is transitioning online.

On steadily

Router is functioning normally.

Red

Blinking

Router has reported an alarm.

On steadily

Router has failed.

T1/E1 Port LEDs

The front panel has sixteen T1/E1 ports, each with one pair of port LEDs. Table 8 describes the LEDs in more detail.

Table 8: T1/E1 Port LEDs

Name

Location

Color

Description

Link

Left

Green

Online with no alarms or failures.

Red

Active with a local alarm; router has detected a failure.

Not enabled.

Link (remote alarms)

Right

Yellow

Online with alarms for remote failures.

Ethernet Port LEDs

The front panel of the ACX2000 router has six Gigabit Ethernet RJ-45 ports, and the ACX2100 router has eight Gigabit Ethernet RJ-45 ports, each with one pair of port LEDs. Table 9 describes the LEDs in more detail.

Table 9: Ethernet Port LEDs

Name

Location

Color

State

Description

Link

Right

Amber

On

Link is online.

Off

No link.

RX

Left

Green

Blinking

The port is receiving data.

Off

The port is not receiving data.

PoE Port LEDs

The front panel of the ACX2000 router has two PoE Gigabit Ethernet ports, each with one pair of port LEDs. Table 10 describes the LEDs in more detail.

Table 10: PoE Port LEDs

Name

Location

Color

State

Description

Link

Right

Amber

On

Link is online.

Off

No link.

RX

Left

Green

Blinking

The port is receiving data.

Off

The port is not receiving data.

SFP and SFP+ Port LEDs

The front panel has Gigabit Ethernet SFP ports and 10-Gigabit Ethernet SFP+ ports, each with one pair of port LEDs. Table 11 describes the LEDs in more detail.

Table 11: SFP and SFP+ Link LEDs

Name

Location

Color

State

Description

Link

Right

Amber

On

Link is online.

Off

No link.

RX

Left

Green

Blinking

The port is receiving data.

Off

The port is not receiving data.

Management and Console Port LEDs on the Front Panel

Two RJ-45 ports, labeled MGMT and CONSOLE/AUX, each have a pair of LEDs that display the status of the port. Table 12 describes the LEDs in more detail.

Table 12: Management and Console LEDs

Name

Location

Color

State

Description

Link/Activity

Right

Amber

On

Link is online.

Yellow

Blinking

Indicates link activity.

Off

No link.

RX

Left

Green

Blinking

The port is receiving data.

Off

The port is not receiving data.