ACX500 Alarm and Management Cable Specifications and Pinouts
Alarm Contact Port Pinouts for ACX500 Routers
You can independently configure alarm input ports (0 through 3) to operate in Normally Open or Normally Closed mode, and to trigger a red alarm condition or a yellow alarm condition, or to ignore alarm conditions.
You can independently configure alarm output ports (0 and 1) to relay alarm information when the system condition goes to a red or yellow alarm condition and when the alarm output port is configured to trigger based on alarm input condition. Alarm output ports (2 and 3) are used to indicate major and minor system alarms and are normally in open mode.
Table 1 shows the alarm contact connector pinouts.
Table 1: Alarm Contact Connector Pinouts
Pin Number | Signal Definition | Direction | CLI Port Mapping | Function |
---|---|---|---|---|
1 | ALARM_IN0_NO/NC | Input | Input Alarm Port 0 | External alarm input 0 (if voltage on this pin is between 24 V to 72 V with reference to Pin 6, alarm input 0 is in closed condition) |
2 | ALARM_IN1_REF | Input | Input Alarm Port 1 | External alarm input 1 (Reference for Pin 7) |
3 | ALARM_IN2_NO/NC | Input | Input Alarm Port 2 | External alarm input 2 (if voltage on this pin is between 24 V to 72 V with reference to Pin 8, alarm input 2 is in closed condition) |
4 | ALARM_IN3_NO/NC | Input | Input Alarm Port 3 | External alarm input 3 (if voltage on this pin is between 24 V to 72 V with reference to Pin 8, alarm input 3 is in closed condition) |
5 | ALARM_OUT3_REF | Output | Reserved for Minor alarm | External alarm output 3 (this pin is connected to Pin 10 in closed condition) |
6 | ALARM_IN0_REF | Input | Input Alarm Port 0 | External alarm input 0 (Reference for Pin 1) |
7 | ALARM_IN1_NO/NC | Input | Input Alarm Port 1 | External alarm input 1 (if voltage on this pin is between 24 V to 72 V with reference to Pin 2, alarm input 1 is closed) |
8 | ALARM_IN2_IN3_REF | Input | Input Alarm Port 2 and Input Alarm Port 3 | Common contact for external alarm input 3 and 4 (Reference for Pin 3 and Pin 4) |
9 | ALARM_OUT2_REF | Output | Reserved for Major alarm | External alarm output 2 (this pin is connected to Pin 15 in closed condition) |
10 | ALARM_OUT3_NO/NC | Output | Reserved for Minor alarm | External alarm output 3 (this pin is connected to Pin 5 in closed condition) |
11 | ALARM_OUT0_NO/NC | Output | Output Alarm Port 0 | External alarm output 0 (this pin is connected to Pin 12 in closed condition) |
12 | ALARM_OUT0_REF | Output | Output Alarm Port 0 | External alarm output 0 (this pin is connected to Pin 11 in closed condition) |
13 | ALARM_OUT1_NO/NC | Output | Output Alarm Port 1 | External alarm output 1 (this pin is connected to Pin 14 in closed condition) |
14 | ALARM_OUT1_REF | Output | Output Alarm Port 1 | External alarm output 1 (this pin is connected to Pin 13 in closed condition) |
15 | ALARM_OUT2_NO/NC | Output | Reserved for Major alarm | External alarm output 2 (this pin is connected to Pin 9 in closed condition) |
Console Port Connector Pinout on ACX500 Routers
The port labeled CONSOLE
on the front panel is an asynchronous serial interface
that accepts an RJ-45 connector. Use a cable with the pinouts described
in Table 2 to connect the Routing Engine
to a console management device.
You must use a shielded twisted pair (STP) cable for both outdoor and indoor router deployments.
Table 2: Connector Pinout for the Console Port
Pin | Signal | Description | CPU | Direction |
---|---|---|---|---|
1 | RTS | Request to Send | Routing Engine | Out |
2 | NC | No Connect | – | – |
3 | TXD | Transmit Data | Routing Engine | Out |
4 | Ground | Signal Ground | – | – |
5 | Ground | Signal Ground | – | – |
6 | RXD | Receive Data | Routing Engine | In |
7 | NC | No Connect | – | – |
8 | CTS | Clear to Send | Routing Engine | In |
Management Port Connector Pinout Information for ACX500 Routers
The management port—labeled MGMT
—on
an ACX Series router uses an RJ-45 connector to connect to a management
device for out-of-band management.
The port uses an autosensing RJ-45 connector to support a 10/100/1000BASE-T connection. Two LEDs indicate link and /activity on the port and the administrative status of the port.
Table 3 provides the pinout information for the RJ-45 connector for the management port.
Table 3: Management Port Connector Pinout Information
Pin | Description | Direction |
---|---|---|
1 | TRD[0]+ | In/Out |
2 | TRD[0]- | In/Out |
3 | TRD[1]+ | In/Out |
4 | TRD[2]+ | In/Out |
5 | TRD[2]- | In/Out |
6 | Pin6 TRD[1]- | In/Out |
7 | TRD[3]+ | In/Out |
8 | TRD[3]- | In/Out |
USB Port Specifications for ACX500 Routers
The following Juniper Networks USB flash drives have been tested and are officially supported for the USB port on all ACX Series routers:
RE-USB-1G-S
RE-USB-2G-S
RE-USB-4G-S
Any USB memory product not listed as supported for ACX Series routers has not been tested by Juniper Networks. The use of any unsupported USB memory product could expose your ACX Series router to unpredictable behavior. Juniper Networks Technical Assistance Center (JTAC) can provide only limited support for issues related to unsupported hardware. We strongly recommend that you use only supported USB flash drives.
All USB flash drives used on ACX Series routers must have the following features:
USB 2.0 or later.
Formatted with a FAT or MS-DOS file system.
External Clocking Ports Specifications on ACX500 Routers
The external clocking port on the ACX500 router contains four SMB connectors that support 1 pulse-per-second (PPS) signal. These signals are internally isolated and have surge protection. Use a Molex 50-ohm SMB connector or equivalent (not provided) to connect to the external clocking ports.
See also
ToD RS-422 and 1 PPS RS-422 Port Connector Pinout on ACX500 Routers
The port labeled TOD
on the front panel
is an asynchronous serial interface that accepts an RJ-45 connector
(supports RS-422). Use a cable with the pinouts described in Table 4 to connect the Routing Engine to a console
management device.
Table 4: Connector Pinout for the TOD RS-422 and 1 PPS RS-422 Ports
RJ-45 Pin | Signals | Description | Direction |
---|---|---|---|
1 | Reserve | No Connect | – |
2 | Reserve | No Connect | – |
3 | 1PPS_OUT- | Tx 1PPS negative | Out |
4 | GND | RS-422 level GND | – |
5 | GND | RS-422 level GND | – |
6 | 1PPS_OUT+ | Tx 1PPS positive | Out |
7 | TX- | Tx TOD Time message negative | Out |
8 | TX+ | Tx TOD time message positive | OUT |