NIM-2T – 2-Port Serial WAN – Smart Serial NIM – 8 Mbps
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NIM-2T Description
NIM-2T is a Cisco 4000 Series ISR 2-port synchronous serial WAN Network Interface Module for router designs that need two Smart Serial WAN connections in one NIM slot.
This SKU is the middle-density option in Cisco's 1-, 2-, and 4-port serial NIM family. It avoids using two NIM-1T modules when two serial circuits are required, while NIM-4T is the higher-density alternative when four synchronous serial ports are needed.
Quote review should verify the target ISR 4000 platform, available NIM slot, Cisco IOS XE support level, IP Base feature set, Smart Serial cable type, DTE or DCE role, and required HDLC, PPP, or Frame Relay encapsulation before ordering this module.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
NIM-2T |
|
Product family |
Cisco 4000 Series ISR serial WAN Network Interface Modules |
|
Product type |
2-port synchronous serial WAN NIM |
|
Cisco description |
2-Port Serial WAN Interface Card |
|
Interface role |
Synchronous serial WAN connectivity |
|
Connector type |
Smart Serial / 12-in-1 |
|
Connector count |
2 |
|
Ports per connector |
1 |
|
Maximum data rate per port |
8 Mbps |
|
Supported interfaces |
V.35, RS-232, X.21, EIA/TIA-449, EIA-530, and EIA-530A |
|
Supported encapsulations |
HDLC, PPP, and Frame Relay |
|
4400 Series software baseline |
Cisco IOS XE Release 3.12S or later with IP Base feature set |
|
Physical form factor |
Single-wide NIM with no slot restrictions |
Application Scenarios
Choose NIM-2T when one Cisco ISR 4000 router must carry two synchronous serial WAN circuits without allocating a separate NIM slot for each link.
Use this module when the deployment already specifies Cisco Smart Serial cabling and each circuit needs a supported V.35, EIA/TIA-232, EIA/TIA-449, X.21, EIA/TIA-530, or EIA/TIA-530A interface.
Select NIM-2T for refresh projects that keep HDLC, PPP, or Frame Relay on synchronous serial links while moving the router platform into the Cisco 4000 Series ISR NIM architecture.
Product Comparison
|
Parameter |
NIM-2T | ||
|---|---|---|---|
|
Product family |
Cisco 1-, 2-, and 4-port serial NIMs |
Cisco 1-, 2-, and 4-port serial NIMs |
Cisco 1-, 2-, and 4-port serial NIMs |
|
Cisco description |
2-Port Serial WAN Interface Card |
1-Port Serial WAN Interface Card |
4-Port Serial WAN Interface Card |
|
Product type |
Synchronous serial WAN NIM |
Synchronous serial WAN NIM |
Synchronous serial WAN NIM |
|
Connector type |
Smart Serial / 12-in-1 |
Smart Serial / 12-in-1 |
Smart Serial / 12-in-1 |
|
Connector count |
2 |
1 |
4 |
|
Ports per connector |
1 |
1 |
1 |
|
Maximum data rate per port |
8 Mbps |
8 Mbps |
8 Mbps |
|
Supported interfaces |
V.35, RS-232, X.21, EIA/TIA-449, EIA-530, and EIA-530A |
V.35, RS-232, X.21, EIA/TIA-449, EIA-530, and EIA-530A |
V.35, RS-232, X.21, EIA/TIA-449, EIA-530, and EIA-530A |
|
Supported encapsulations |
HDLC, PPP, and Frame Relay |
HDLC, PPP, and Frame Relay |
HDLC, PPP, and Frame Relay |
|
4400 Series platform quantity in Cisco datasheet |
Up to 3 modules on Cisco 4451-X |
Up to 3 modules on Cisco 4451-X |
Up to 3 modules on Cisco 4451-X |
|
4400 Series software baseline |
Cisco IOS XE Release 3.12S or later with IP Base feature set |
Cisco IOS XE Release 3.12S or later with IP Base feature set |
Cisco IOS XE Release 3.12S or later with IP Base feature set |
|
Cisco 4000 Series interfaces page description |
2-Port Serial High-Speed WAN Interface Card |
1-Port Serial High-Speed WAN Interface Card |
4-Port Serial High-Speed WAN Interface Card |
- In a NIM-2T vs NIM-1T comparison, the confirmed difference is serial connector count: NIM-2T has two Smart Serial connectors while NIM-1T has one.
- The NIM-2T vs NIM-4T difference is port density, because Cisco lists two connectors on NIM-2T and four connectors on NIM-4T with the same supported serial interfaces and 8 Mbps per-port maximum.
- For buyers comparing NIM-2T vs NIM-1T or NIM-4T, the model to choose depends on required serial circuit count, available NIM slots, and whether two ports or four ports are needed in the router BOM.
Selection Guide
1. Choose NIM-2T for two synchronous serial links
Select NIM-2T when the router bill needs two Smart Serial WAN interfaces and the target ISR 4000 platform supports the serial NIM family.
2. Use NIM-1T for a single-circuit branch
Choose NIM-1T instead when the deployment has only one serial WAN circuit and preserving the second connector is not required.
3. Move to NIM-4T for four serial circuits
Select NIM-4T when the confirmed requirement is four synchronous serial ports and Cisco platform support allows that higher-density SKU.
4. Match cable role and encapsulation before ordering
Verify DTE or DCE cable selection, the serial interface standard, clocking needs for DCE ports, and HDLC, PPP, or Frame Relay encapsulation before adding NIM-2T to the quote.
Ordering Checklist
|
Review Area |
Required Confirmation |
Procurement Risk |
|---|---|---|
|
Two-port identity |
Order NIM-2T for two synchronous serial WAN connectors |
Prevents a one-port NIM-1T or four-port NIM-4T substitution during quote cleanup |
|
Router slot plan |
Confirm a supported Cisco 4000 Series ISR NIM slot or compatible module-placement plan |
Avoids assigning the serial NIM to a router position outside Cisco’s documented support context |
|
Software readiness |
Check Cisco IOS XE Release 3.12S or later and IP Base feature set for 4400 Series deployments |
Keeps the hardware order aligned with the documented software requirement |
|
Smart Serial cabling |
Select the cable family for V.35, RS-232, X.21, EIA/TIA-449, EIA-530, or EIA-530A |
The cable choice determines the physical interface presented to the carrier or attached device |
|
DTE or DCE role |
Verify whether either serial port must provide DCE clocking |
DCE ports use the documented clock-rate range and should be planned before field turn-up |
|
WAN encapsulation |
Confirm HDLC, PPP, or Frame Relay for the two circuits |
Cisco documents this protocol set for the serial NIM family |
|
Service-window handling |
Plan slot power shutdown or OIR command use before module replacement |
Reduces installation risk when the router is already deployed |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Brand | Cisco | Product ID | NIM-2T |
| Product family | Cisco 4000 Series ISR serial WAN Network Interface Modules | Product type | Synchronous serial WAN NIM |
| Cisco description | 2-Port Serial WAN Interface Card | Connector type | Smart Serial / 12-in-1 |
| Connector count | 2 | Ports per connector | 1 |
| Maximum data rate per port | 8 Mbps | Supported interfaces | V.35, RS-232, X.21, EIA/TIA-449, EIA-530, and EIA-530A |
| Supported encapsulations | HDLC, PPP, and Frame Relay | Synchronous support | Yes |
| 4400 Series software baseline | Cisco IOS XE Release 3.12S or later | Feature set baseline | IP Base feature set |
| Physical form factor | Singlewide NI, no slot restrictions | Supported platform quantity in datasheet | Up to 3 modules on Cisco 4451-X |
| Clock rate range | 1200 to 8000000 bps for DCE interfaces | Default MTU | 1500 bytes |
| MTU range | 64 to 8100 bytes | Half duplex support | Not supported |
| Physical dimensions | 1.25 x 3.50 x 7.24 in. (3.18 x 8.89 x 18.39 cm) | Operating temperature | 32 to 104 degrees F (0 to 40 degrees C) |
| Storage temperature | -4 to 149 degrees F (-20 to 65 degrees C) | Relative humidity | 10 to 90 percent, noncondensing |
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