LTE Mini-Physical Interface Module
LTE Mini-Physical Interface Module
The LTE Mini-Physical Interface Module (Mini-PIM) provides wireless WAN support on the SRX300 Series and SRX550 High Memory Services Gateways. The Mini-PIM contains an integrated modem and operates over 3G and 4G networks. The Mini-PIM supports up to two SIM cards and can be installed in any of the Mini-PIM slots on the services gateways.
The Mini-PIM supports the following features:
Automatic switchover between service providers through dual SIMs
Storage support for multiple service provider and access point name (APN) profiles
LTE carrier aggregation
SIM lock and unlock capability
Always-on, dial-on-demand, and backup modes
Over-the-Air upgrade for modem firmware
Figure 1 shows the front panel of the LTE Mini-PIM.
The LTE Mini-PIM ships with a SIM slot cover as shown in Figure 2.
Table 1 lists the components on the front panel of the Mini-PIM.
Table 1: LTE Mini-PIM Front Panel Components
Component | Description |
|---|---|
Antenna connectors | Two SubMiniature version A (SMA) connectors. |
Mini-USB port | Mini-USB Type-B port for monitoring and troubleshooting. |
SIM slots | Two slots, Caution: SIM cards are not hot-swappable. You must power off the services gateway before removing or inserting a SIM card. |
LEDs | Indicate the status at a glance. For details on the LED indications, see LTE Mini-Physical Interface Module LEDs. |
The LTE Mini-PIM is not hot-swappable. You must power off the services gateway before removing or installing the Mini-PIM.
The LTE Mini-PIM supports two multi-band swivel-mount dipole antennas, which can be rotated 360 °. You can rotate the antennas and select the angle at which the signal strength is high. Table 2 lists the specifications for the antenna.
Table 2: Specifications for the LTE Mini-PIM Antenna
Specification | Value |
|---|---|
Part number | EDA-2010-4G0R2-A2 (Vendor: MAG.LAYERS) |
Operating frequency range |
|
Voltage Standing Wave Ratio (VSWR) | 5 (maximum) |
Impedance | 50 ohm |
Radiation | Omnidirectional |
Peak gain |
|
Input power | 1 W |
Polarization | Linear, vertical |
Operating temperature | –4° F (–20° C) to 149° F (65° C) |
Connector type | SMA |
Length | 203 mm |
The antenna is connected to the services gateway through the magnetic antenna base. Table 3 lists the specifications for the antenna base.
Table 3: Antenna Base Specifications
Specification | Value |
|---|---|
Part number | BS-05SF-174-3M-0102 (Vendor: Chang Hong) |
Cable length | 3 m |
Connector type | SMA |
Dimensions (H x W x L) | 29.50 mm x 73 mm x 73 mm |
Table 4 provides a summary of the different models of the Mini-PIM.
Table 4: LTE Mini-PIM Models
Model | Mode | Operating Region | Frequency Band |
|---|---|---|---|
SRX-MP-LTE-AE |
|
| For LTE:
For 3G (HSPA+):
|
SRX-MP-LTE-AA |
|
| For LTE:
For 3G (HSPA+):
|
The Mini-PIM can be configured in three modes:
Always-on—The Mini-PIM connects to the 3G/4G network after booting. The connection is always maintained, as long as there are no network or connectivity problems.
Dial-on-demand—The Mini-PIM initiates a connection when it receives traffic.
Backup—The Mini-PIM connects to the 3G/4G network when the primary connection fails.
The LTE Mini-PIM supports the following wireless standards:
FCC Part 2
FCC Part 22
FCC Part 24, Part 27 and Part 90
RSS 129 and RSS 133, RSS 130, RSS 199, and RSS 139
RSS 132 and RSS 133
EN 301 511 GSM
EN 301 908-1
EN 301 908-2
The Certification and Engineering Bureau of Industry Canada (IC)
Radio Equipment (RE) Directive of the European Union
GCF
CTIA-PTCRB
LTE Mini-Physical Interface Module LEDs
Figure 3 shows the LEDs on the LTE Mini-PIM.
Table 5 lists the LEDs on the LTE Mini-PIM and their indications.
Table 5: LTE Mini-PIM LED States
LED | Description |
|---|---|
SIG (Received Signal Strength Indicator) | Solid green (one bar)—Low signal strength (<= –99 dBm). |
Solid green (two bars)—Low signal strength | |
Solid green (three bars)—Low signal strength | |
Solid green (four bars)—High signal strength (>= –75 dBm). | |
Unlit—No signal | |
3G | Solid green—3G connection is established. |
Blinking green—Connecting to a 3G network. | |
LTE | Solid green—LTE connection is established. |
Blinking green—Connecting to an LTE network. | |
SIM1 | Solid green—SIM1 is active. |
SIM2 | Solid green—SIM2 is active. |
If all the LEDs are blinking, it indicates that firmware updates are in progress. Do not power off the services gateway before the updates complete.
LTE Mini-Physical Interface Module Hardware Specifications
Table 6 provides the hardware specifications for the LTE Mini-PIM.
Table 6: LTE Mini-PIM Hardware Specifications
Description | Value |
|---|---|
Dimensions (H x W x L) | 0.80 in. x 3.75 in. x 5.9 in. |
Weight | 0.23 lb (0.106 kg) |
Connector type | SMA |
Form factor | Mini-PIM |
Environmental operating temperature | 32° F through 104° F (0° C through 40° C) |
Storage temperature | -40° F through 158° F (-40° C through 70° C) |
Relative humidity | 5% to 90% noncondensing |
LTE Mini-Physical Interface Module Installation and Configuration
Installing the LTE Mini-PIM
The LTE Mini-PIM can be installed in any of the Mini-PIM slots on the services gateway.
You can install only one LTE Mini-PIM in a services gateway.
To install the LTE Mini-PIM in a services gateway:
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the grounding point on the back of the services gateway.
- Power off the services gateway by briefly pressing the
Powerbutton on the front panel. Wait for thePowerLED to turn off before proceeding. Disconnect the services gateway from the power source. - Remove the blank Mini-PIM installed on the services gateway:
Loosen the screws on the faceplate of the blank Mini-PIM.
Grasp the screws on each side and remove the blank Mini-PIM.
- Remove the LTE Mini-PIM from the electrostatic bag.
- Grasp the screws on each side of the Mini-PIM faceplate
and align the notches in the connector at the rear of the Mini-PIM
with the notches in the Mini-PIM slot in the services gateway.
Caution Slide the Mini-PIM straight into the slot to avoid damaging the components on the Mini-PIM.
- Slide the Mini-PIM in until it lodges firmly in the services
gateway. See Figure 4.
Figure 4: Installing the LTE Mini-PIM 
- Using a 1/8-in. (3-mm) flat-blade (–) screwdriver, tighten the screws on each side of the Mini-PIM faceplate.
- Remove the SIM slot cover. Insert the SIM card into the
SIM slot,
SIM 1.You can use the other slot,
SIM 2, for installing a secondary or backup SIM.Note When you insert SIM cards into the respective slots, make sure to orient the cards correctly. Insert SIM1 into its slot with the connector side (SIM card chip) facing down and the notch on the left. Insert SIM2 into its slot with the connector side facing up and the notch on the right. See Figure 5.
Figure 5: Inserting the SIM Card 
To remove a SIM card from its slot, press the edge of the card projecting out of the slot.
- Replace the cover over the SIM slots.
- Attach the antennas to the antenna base. Connect the cables
from each antenna base to the SMA connectors on the Mini-PIM. See Figure 6.
Figure 6: Attaching the Antennas 
The antenna base is magnetic and can be attached to the rack directly, if the rack is metallic. Else, you can mount the antenna base on the rack using the mounting brackets. See Figure 7.
Figure 7: Mounting the Antennas on a Rack 
Note For SRX320 Services Gateways, which can be mounted on a wall, the antennas can be mounted as shown in Figure 8.
Figure 8: Mounting the Antennas on a Wall 
- Power on the services gateway.
Configuring the LTE Mini-PIM
If a services gateway with factory-default settings is powered on with the LTE Mini-PIM installed in slot 1, the dialer interface is triggered to dial automatically. This functionality is applicable only if the Mini-PIM is installed in slot 1. If the Mini-PIM is installed in any other slot, then you will need to manually configure the cl-slot-number/0/0 interface to be associated with the dialer interface.
To configure the Mini-PIM:
- Configure the dialer pool:
user@host# set interfaces cl-slot-number/0/0 dialer-options pool number priority number
- Configure the profile:
user@host# request modem wireless create-profile profile-id profile-id access-point-name l3vpn.corp authentication-method chap sip-user-id user@myvpn.net sip-password password
- Activate the SIM:
user@host# set interfaces cl-slot-number/0/0 act-sim sim-slot-number
- Select the profile and configure the radio access type
for the SIM card:
user@host# set interfaces cl-slot-number/0/0 cellular-options sim sim-slot-number profile-id profile-id
user@host# set interfaces cl-slot-number/0/0 cellular-options sim sim-slot-number radio-access automatic
Note If a SIM card is installed in the second slot, then select the profile and configure the radio access type for the secondary SIM card as well.
- Configure the dialer interface:
Always-on mode:
user@host# set interfaces dl0 unit 0 family inet negotiate-address
user@host# set interfaces dl0 unit 0 family inet6 negotiate-address
user@host# set interfaces dl0 unit 0 dialer-options pool dialer-pool-number
user@host# set interfaces dl0 unit 0 dialer-options dial-string dial-number
user@host# set interfaces dl0 unit 0 dialer-options always-on
Dial-on-demand mode:
user@host# set interfaces dl0 unit 0 family inet negotiate-address
user@host# set interfaces dl0 unit 0 family inet6 negotiate-address
user@host# set interfaces dl0 unit 0 family inet filter dialer dialer-filter-name
user@host# set interfaces dl0 unit 0 dialer-options pool dialer-pool-number
user@host# set interfaces dl0 unit 0 dialer-options dial-string dial-number
Backup mode:
user@host# set interfaces dl0 unit 0 family inet negotiate-address
user@host# set interfaces dl0 unit 0 family inet6 negotiate-address
user@host# set interfaces dl0 unit 0 dialer-options pool dialer-pool-number
user@host# set interfaces dl0 unit 0 dialer-options dial-string dial-number
user@host# set interfaces interface-name unit 0 backup-options interface dl0.0
Configuring a Static Route on the Dialer Interface
A static route enables the dialer interface to forward packets to a specific destination other than the default route. Static routes are manually configured and entered into the routing table. You can configure a static route on the dialer interface by using the set interfaces dl0 unit 0 dialer-options route destination-ip-address command.
After you configure a static route, make sure that the route appears in the routing table of the device by using the show route command. Note that the static route appears in the routing table only after the LTE Mini-PIM is connected to the network.
Sample output:
user@host> show route
inet.0: 10 destinations, 10 routes (10 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both
0.0.0.0/0 *[Access-internal/12] 4d 03:23:52, metric2 0
> to 10.14.5.137 via dl0.0
10.22.22.22/32 *[Access-internal/12] 00:01:03, metric2 0
> to 10.14.5.137 via dl0.0
Firmware Upgrade on the LTE Mini-Physical Interface Module
Mini-PIM Firmware Upgrade Using the CLI
To upgrade the firmware on the Mini-PIM, using the CLI:
When you upgrade the firmware on the Mini-PIM, the modem firmware is also upgraded.
- Identify the currently installed firmware (jfirmware)
version:
user@host > show system firmware
Note Ensure that you upgrade the firmware on the Mini-PIM to the latest version.
The Current version field in the output displays the firmware version that is currently installed on the Mini-PIM. If there is a newer version of the firmware at https://www.juniper.net/support/downloads/?p=junos-srx#sw, then proceed to the next step to download the latest firmware.
Part Type Tag Current Available Status version version FPC 1 PIC 0 MLTE_FW 1 17.2.91 OK Routing Engine 0 RE BIOS 0 3.2 3.2 OK Routing Engine 0 RE BIOS Backup 1 3.2 3.2 OK - Download
the appropriate firmware version from https://www.juniper.net/support/downloads/?p=junos-srx#sw:
user@host > request system software add /var/tmp/jfirmware-<version>-signed.tgz
Note Ensure that the Junos OS version installed on the device is the same as the firmware version or later. To know the Junos OS version, issue the show version command.
- Ensure that the latest firmware version is downloaded
to the Mini-PIM by verifying the Available version field. The Available version field
should list the latest firmware version that was downloaded in Step 2.
user@host > show system firmware
Part Type Tag Current Available Status version version FPC 1 PIC 0 MLTE_FW 1 17.2.91 17.5.517 OK Routing Engine 0 RE BIOS 0 3.2 3.2 OK Routing Engine 0 RE BIOS Backup 1 3.2 3.2 OK - Upgrade the firmware on the device:
user@host > request system firmware upgrade pic fpc-slot <fpc-slot-number>
Part Type Tag Current Available Status version version FPC 1 PIC 0 MLTE_FW 1 17.2.91 17.5.517 OK Perform indicated firmware upgrade ? [yes,no] (no) yes Firmware upgrade initiated, use "show system firmware" to monitor status. - Verify that the firmware is upgraded successfully. The
status should show OK.
user@host > show system firmwarePart Type Tag Current Available Status version version FPC 1 PIC 0 MLTE_FW 1 17.2.91 17.5.517 UPGRADED SUCCESSFULLY Routing Engine 0 RE BIOS 0 3.0 3.6 OK Routing Engine 0 RE BIOS Backup 1 3.0 3.6 OKuser@host > show system firmwarePart Type Tag Current Available Status version version FPC 1 PIC 0 MLTE_FW 1 17.5.517 17.5.517 OK Routing Engine 0 RE BIOS 0 3.0 3.6 OK Routing Engine 0 RE BIOS Backup 1 3.0 3.6 OK - Reboot the device after the firmware is upgraded. Note that if you issue the show system firmware command after the reboot, the Current Version field shows the latest firmware version and the Available Version field shows zero(0).
Modem Firmware Upgrade Through Over-the-Air (OTA)
Over-the-Air (OTA) firmware upgrade enables automatic and timely upgrade of modem firmware when new firmware versions are available. The OTA upgrade can be enabled or disabled on the 4G/LTE Mini-PIM. OTA is disabled by default.
- Enable OTA upgrade status on the LTE Mini-PIM:
user@host > request modem wireless fota enable
- Initiate the firmware upgrade:
user@host > request modem wireless upgrade cl-slot number/0/0
- Verify the firmware upgrade status:
user@host > show modem wireless firmware cl-slot number/0/0
root> show modem wireless firmware cl-1/0/0 LTE mPIM firmware details Product name: Junos LTE mPIM Serial number: AG50071902 Hardware version: AcceleratedConcepts/sprite Firmware version: 17.2.91 MAC: 00:00:5e:00:53:c5 System uptime: 429 seconds Wireless modem firmware details Modem firmware version: 9999999_9904609_SWI9X30C_02.23.00.00_00_GENERIC_002.018_000 Modem Firmware build date: 22/10/2016 Card type: MC7430 Modem manufacturer: Sierra Wireless, Inc Hardware version: 1.0 Temperature & Power: Normal 3328 mV, Normal 33.00 C OTA status State: Disabled New firmware available: No Number of SIM: 1 Slot of active: 2 Status of SIM 1 SIM state: SIM absent Modem PIN security status: Disabled SIM status: SIM Okay SIM user operation needed: No Op Retries remaining: 0
- Check the LTE Mini-PIM connection status:
user@host > show modem wireless network cl-slot number/0/0
root> show modem wireless network cl-1/0/0 LTE Connection details Connected time: 147 IP: 172.16.52.4 Gateway: 172.16.52.5 DNS: 123.123.123.123 Input bps: 0 Output bps: 0 Bytes Received: 1308 Bytes Transferred: 1164 Packets Received: 10 Packets Transferred: 10 Wireless Modem Network Info Current Modem Status: Connected Current Service Status: Normal Current Service Type: PS Current Service Mode: LTE Current Band: B3 Network: UNICOM Mobile Country Code (MCC): 460 Mobile Network Code (MNC): 1 Location Area Code (LAC): 65534 Routing Area Code (RAC): 0 Cell Identification: 4865903 Access Point Name (APN): ctnet Public Land Mobile Network (PLMN): CHN-UNICOM Physical Cell ID (PCI): 333 International Mobile Subscriber Identification (IMSI): ************** International Mobile Equipment Identification (IMEI/MEID): ************* Integrate Circuit Card Identity (ICCID): 89860114721100697502 Reference Signal Receiving Power (RSRP): -97 Reference Signal Receiving Quality (RSRQ): -16 Signal to Interference-plus-Noise Ratio (SiNR): 0 Signal Noise Ratio (SNR): 0 Energy per Chip to Interference (ECIO): 0