Control Panels
This section describes the front and rear control panels of the Acme Packet 4900.
Front Panel
The Acme Packet 4900 front control panel provides easy access to several unit components. You can access the power pushbutton and view the power LED, the alarm LED, and the high availability LEDs. The following is a close up of the front control panel.
High Availability Mode LEDs
If you configure the Acme Packet 4900 as part of a High Availability pair, these LEDs will specify the current HA mode for the unit; whether the unit is in Standby or Active Mode. If the unit is not part of an HA pair these LEDs will not be lit.
Alarm LED
The Alarm LED will be lit when the unit is in alarm mode.
Power LED
The green PWR LED indicates the operational state of the chassis.
- on — indicates that power is being applied to the chassis.
- off — indicates that power is not being applied to the chassis.
Power Pushbutton
- Short press—Start a graceful shutdown
- Long press—Force a hard shutdown
Attention:
The short press only works as described when running Release 9.0p1 and later.Forcing a hard shut down can result in loss of data.
Rear Panel
The Acme Packet 4900 comes with the Rear Panel as a permanent part of the chassis. All the Signaling, Media and Network Management ports are located on the Rear Panel of the chassis.
T1/E1 Ports
The Acme Packet 3950, but not the Acme Packet 4900, supports T1/E1 ports.
In centralized SIP trunking topologies, this T1/E1 module preserves voice services in the event of a corporate WAN connectivity failure. In distributed SIP trunking topologies the module preserves dialout voice services in the event of a local SIP trunk interface failure.
The RJ48C connector looks very similar to an RJ45 connector found on a typical CAT5 cable, but they are very different. A RJ48C connector is fastened on to a STP (Shielded Twisted Pair) cable, not the standard UTP (Unshielded Twisted Pair) CAT-(1-6) cable. A RJ48C connector also uses a different pin out arrangement, voltage level, and line capacitance than a RJ45 connector.
Serial Management Port
The serial management port on the Acme Packet 4900 rear panel the provides console access to the unit over an RS-232C serial connection. The serial management port is useful for customers who want permanent console access, and provides a layer of physical security for the unit if access to the site is controlled.
- Creating the initial connection to the Acme Packet 4900
- Accessing and using all functionality available via the ACLI
- Performing in-lab unit maintenance
Serial Management Port Pin-out
The Acme Packet 4900 console port features one RJ45 port on the unit console. Because the Acme Packet 4900 does not employ any type of flow control on its RS-232 ports, only the RX, TX, and GND pins are used. The following table identifies the pin assignments and signal names/descriptions for the console connector.
Table 2-1 Console Port Pin-Out
| Pin Number | Signal Name/Description |
|---|---|
| 3 | Receive Data (RX) |
| 4 | Ground (GND) |
| 6 | Transmit Data (TX) |
Console Adapter
A standard RJ45 to DB-9 serial console adapter is shipped with the Acme Packet 4900. This adapter converts the RJ45 plug on a straight-through Ethernet cable to a standard DB-9 serial port jack, found on a PC or laptop. Any straight-through Ethernet cable can be used between the Acme Packet 4900 and the console adapter.
Network Management Ports
The Acme Packet 4900 has three network management ports located on the rear left side of the chassis, labeled Mgmt 0, Mgmt 1, and Mgmt 2. These 10/100/1000 Base-T Ethernet ports are used for EMS control, RADIUS accounting, CLI management, SNMP queries and traps, and other management functions.
Ethernet LED
Each network management Ethernet port has two integrated LEDs: one LED indicates Link, and the other indicates Activity. The LED pair is located directly above its associated port.
Link LED
The link LED is located to the top left side of the network management Ethernet port. This LED illuminates yellow when a link has been established between the link partner device and the Acme Packet 4900.
Activity LED
The activity LED is located at the top right side of the network management Ethernet port. The activity LED illuminates green when an Ethernet connection has either transmit or receive packet activity.
Upon initial bootup of the Acme Packet 4900, the network management Ethernet ports are not configured. You must first connect to the Acme Packet 4900 over a serial connection before you can configure the management Ethernet ports for use. Set up the management interfaces using the physical and network interface configuration elements. Refer to the System Configuration chapter of the Configuration Guide for details.
- Maintenance activities
- Application log retrieval
- Software upgrades
- System configuration
- SSH, SNMP and SFTP connections
- RADIUS CDR transmission
Oracle recommends that you use shielded CAT5e or CAT6 Ethernet cables with RJ45 plugs for connecting to the rear-panel Acme Packet 4900 Ethernet interfaces. These Ethernet interfaces have a distance limitation of 328 feet (100 m), as defined by the FAST Ethernet standard, IEEE 802.3.
USB3 Ports
The two USB3 ports, located on the Acme Packet 4900 rear panel, are reserved for software-enabled applications, such as software updates.
Signaling and Media Interfaces
The signaling and media interfaces provide network connectivity for signaling and media traffic. The Acme Packet 4900 has 4 SFP ports (P0-P3) which operate at 1 Gbps and 2 SFP ports (P4-P5) which operate at 10Gpbs. You may use either P0-P3 ports or P4-P5 ports, but the Acme Packet 4900 does not support using both.
The optical ports can accept an LC fiber connector using either single mode
or multimode cable. These signaling ports require a transceiver to be installed which
can be of three types: Single Mode, Multi Mode, and Copper. 