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ACX1000 and ACX1100 Chassis Components

 

Alarm Contact Port on ACX1000 and ACX1100 Routers

The ACX1000 and ACX1100 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 ACX1000 and ACX1100 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 1 describes the functions of the alarm contacts.

Table 1: 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 1 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 1: Sample Output Alarm-Reporting Device
Sample Output
Alarm-Reporting Device

Figure 2 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 2: Sample Input Alarm-Reporting Device
Sample Input
Alarm-Reporting Device

Clocking Ports on the ACX1000 and ACX1100 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 pulse per second (PPS), and 10 MHz. The four SubMiniature B (SMB) connectors 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 ACX1000 and ACX1100 router include:

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

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

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

  • 1 PPS SMB 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

Front Panel of an ACX1000 Router

The front panel of an ACX1000 router consists of the following components (see Figure 3):

  • Chassis status LED labeled SYS

  • DC power terminals

  • USB port 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:

    • Eight T1/E1 ports labeled 0/0/0 through 0/0/7

    • Eight Gigabit Ethernet RJ-45 ports labeled 0/1/0 through 0/1/7

    • Combination Gigabit Ethernet ports labeled 0/2/0 through 0/2/3, either:

      • Four Gigabit Ethernet RJ-45 ports labeled Cu

      • Four Gigabit Ethernet ports labeled SFP that accept SFP transceivers

Figure 3: Front Panel of the ACX1000 Router
Front Panel of the ACX1000
Router
  1
DC terminals
  7
ESD point
  2
Management Ethernet port
  8
Combination Gigabit Ethernet RJ-45 and SFP ports
  3
Console or auxiliary port
  9
External clocking ports
  4
Alarm contact port
10
System (SYS) LED
  5
T1/E1 ports
11
USB port
  6
Gigabit Ethernet (GE) ports
12
Grounding terminals

Front Panel of an ACX1100 Router

The front panel of an ACX1100 router consists of the following components (see Figure 4 and Figure 5):

  • Chassis status LED labeled SYS

  • AC power inlets or DC power terminals

  • USB port 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:

    • Eight Gigabit Ethernet (GE) RJ-45 ports labeled 0/0/0 through 0/0/7

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

      • Four Gigabit Ethernet RJ-45 ports

      • Four Gigabit Ethernet SFP ports that accept SFP transceivers

Figure 4: Front Panel of the AC-Powered ACX1100 Router
Front Panel of the
AC-Powered ACX1100 Router
  1
AC inlets
  7
Combination Gigabit Ethernet SFP ports
  2
Management Ethernet port
  8
External clocking ports
  3
Alarm contact port
  9
Console or auxiliary port
  4
Gigabit Ethernet (GE) ports
10
USB port
  5
Combination Gigabit Ethernet RJ-45 ports
11
System (SYS) LED
  6
ESD point
 
Figure 5: Front Panel of the DC-Powered ACX1100 Router
Front Panel of the
DC-Powered ACX1100 Router
  1
DC terminals
  7
Combination Gigabit Ethernet SFP ports
  2
Management Ethernet port
  8
External clocking ports
  3
Alarm contact port
  9
Console or auxiliary port
  4
Gigabit Ethernet (GE) ports
10
USB port
  5
Combination Gigabit Ethernet RJ-45 ports
11
System (SYS) LED
  6
ESD point
12
Grounding terminals

Unless otherwise specified, the information about uplink ports applies to both ACX1000 and ACX1100 routers.

Tip

You can find information about the pluggable transceivers supported on your Juniper Networks device by using the Hardware Compatibility Tool. In addition to transceiver and connector type, the optical and cable characteristics—where applicable—are documented for each transceiver. The Hardware Compatibility Tool allows you to search by product, displaying all the transceivers supported on that device, or category, displaying all the transceivers by interface speed or type. The Hardware Compatibility Tool is located at https://apps.juniper.net/hct/.

The list of supported transceivers for the ACX1000 is located at https://pathfinder.juniper.net/hct/product/#prd=ACX1000. The list of supported transceivers for the ACX1100 is located at https://pathfinder.juniper.net/hct/product/#prd=ACX1100.

T1/E1 Ports

The ACX1000 router has eight T1/E1 ports located on the front panel. Table 2 describes the ports in more detail.

Table 2: T1/E1 Port Features

Feature

Description

Line rate

E1: 2.048 Mbps per channel

T1: 1.544 Mbps per channel

Encapsulation

TDM (SAToP) mode

ATM PWE3/ATM IMA Mode

Framing

Superframe (D4)

Extended superframe (ESF)

Framed clear channel

Diagnostic features

T1/E1

T1 FDL

CSU

BERT

JIT

Cable

Category 5 shielded twisted pair

Connector

100-ohm RJ-48 connector

Port numbering (hardware)

0/0/0 through 0/0/7

Port numbering (software)

T1 framing (default): ct1-0/0/0 through ct1-0/0/7

E1 framing: ce1-0/0/0 through ce1-0/0/7

Gigabit Ethernet RJ-45 Ports

Each ACX1000 and ACX1100 router has twelve Gigabit Ethernet RJ-45 ports. Table 3 describes the ports in more detail.

Table 3: RJ-45 Port Features

Feature

Description

Supported standards

  • 10BASE-T Copper

  • 100BASE-T

  • 1000BASE-T

Cable

Category 5

Connector

RJ-45

Port numbering (hardware)

ACX1000: 0/1/0 through 0/1/7 and 0/2/0 (Cu) through 0/2/3 (Cu)

ACX1100: 0/0/0 through 0/0/7 and 0/1/0 through 0/1/3

Port numbering (software)

ACX1000: ge-0/1/0 through ge-0/1/7 and ge-0/2/0 through ge-0/2/3

ACX1100: ge-0/0/0 through ge-0/0/7 and ge-0/1/0 through ge-0/1/3

Gigabit Ethernet SFP Ports

The Gigabit Ethernet SFP ports described in Table 4 are located on the front of the chassis allow you to install small form-factor pluggable (SFP) transceivers.

Table 4: Gigabit Ethernet SFP Port Features

Feature

Description

Supported standards

See the Hardware Compatibility Tool for the specifications of transceivers supported on the ACX1000 or ACX1100. The list of supported transceivers for the ACX1000 is located at https://pathfinder.juniper.net/hct/product/#prd=ACX1000. The list of supported transceivers for the ACX1100 is located at https://pathfinder.juniper.net/hct/product/#prd=ACX1100.

Cable

Connector

Port numbering (hardware)

  • ACX1000: 0/2/0 through 0/2/3

  • ACX1100: 0/1/0 through 0/1/3

Port numbering (software)

  • ACX1000: ge-0/2/0 through ge-0/2/3

  • ACX1100: ge-0/1/0 through ge-0/1/3

LEDs on ACX1000 and ACX1100 Routers

Unless otherwise specified, the information about LEDs applies to both ACX1000 and ACX1100 routers.

System LED on the Front Panel

One bicolor LED labeled SYS indicates the status of the router. Table 5 describes the system LED in more detail.

Table 5: 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.

The front panel of the ACX1000 router has eight T1/E1 ports, each with one pair of port LEDs. Table 6 describes the LEDs in more detail.

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.

Each Gigabit Ethernet RJ-45 port on the front panel of the router has one pair of port LEDs. Table 7 describes the LEDs in more detail.

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.

The front panel has four Gigabit Ethernet SFP ports, each with one pair of port LEDs. Table 8 describes the LEDs in more detail.

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 9 describes the LEDs in more detail.

Table 9: 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.