The Cisco PA-MC-8TE1+ Port Adapter is a high-density, single-width WAN interface module engineered for Cisco 7200, 7300, and 7500/7600 Series routers. Designed to consolidate multiple T1 and E1 circuits into a single router slot, this adapter delivers eight configurable T1/E1 ports with full support for channelized data and ISDN Primary Rate Interface (PRI) applications.
Each port on the PA-MC-8TE1+ can be independently configured as T1 or E1, offering exceptional deployment flexibility across global service provider and enterprise WAN environments. Integrated CSU/DSU functionality eliminates the need for external devices, simplifying cabling, reducing rack space, and improving overall network reliability. Support for multiple framing and line coding standards - including SF, ESF, CRC4, CAS, AMI, B8ZS, and HDB3 - ensures compatibility with diverse carrier infrastructures.
Built for mission-critical networks, the Cisco PA-MC-8TE1+ supports hot-swappable Online Insertion and Removal (OIR), enabling maintenance and upgrades without service disruption. With onboard buffering and independent clocking per port, it delivers stable, high-performance transmission for voice gateways, dial-access servers, and legacy TDM-based WAN aggregation.
Ideal for VoIP gateways, ISDN PRI deployments, and channelized WAN connectivity, the Cisco PA-MC-8TE1+ remains a reliable solution for organizations maintaining or integrating TDM services within modern IP networks, backed by the proven engineering of Cisco Systems.
Product Specifications – Cisco PA-MC-8TE1+ Port Adapter
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| Specification Category |
Details |
| Product Name |
Cisco PA-MC-8TE1+ Port Adapter |
| Manufacturer |
Cisco Systems |
| Model / Part Number |
PA-MC-8TE1+ |
| Product Type |
Single-width Port Adapter |
| Supported Router Platforms |
Cisco 7200 VXR, Cisco 7301, Cisco 7304, Cisco 7500 / 7600 Series (with FlexWAN) |
| Total Interfaces |
8 × T1/E1 Ports |
| Connector Type |
RJ-48C |
| Supported Connectivity |
Channelized T1, Channelized E1, ISDN Primary Rate Interface (PRI) |
| Data Rates |
1.544 Mbps (T1), 2.048 Mbps (E1) |
| T1 Framing |
SF, ESF |
| E1 Framing |
CRC4, CAS |
| T1 Line Coding |
AMI, B8ZS |
| E1 Line Coding |
HDB3, AMI |
| Clocking Support |
Independent clocking per port |
| CSU/DSU |
Integrated (no external CSU/DSU required) |
| E1 Interface Types |
Balanced and Unbalanced E1 supported |
| ISDN PRI Support |
Yes (high-density PRI deployments) |
| Buffering |
Integrated onboard buffering for high-throughput channelized traffic |
| Hot Swappable |
Yes – Online Insertion and Removal (OIR) supported |
| Port Configuration Flexibility |
Each port independently configurable as T1 or E1 |
| Use Case – Voice |
VoIP gateways, ISDN PRI voice aggregation |
| Use Case – Data |
Dial access servers, channelized WAN aggregation |
| Cabling Requirements |
Standard RJ-48C cabling |
| Operational Role |
WAN edge connectivity and TDM aggregation |
| Deployment Environments |
Service provider edge, enterprise WAN, legacy TDM integration |
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FAQs:
Q1. Does this port adapter support both T1 and E1 on the same card?
Yes. While you typically configure all ports for one standard per region, the PA-MC-8TE1+ is a universal card capable of handling both T1 (North America/Japan) and E1 (Europe/International) standards.
Q2. What type of cables are used for the connections?
The adapter uses standard RJ-48C connectors. For E1 balanced connections, standard 120-ohm shielded twisted-pair cables are used. For unbalanced E1 (75-ohm), a conversion cable or balun may be required.
Q3. Is this adapter compatible with the Cisco 7600 series?
Yes, it is compatible with the Cisco 7600 series routers, but it must be installed within a FlexWAN or Enhanced FlexWAN module rather than directly into the chassis slots.
Q4. How many DS0 channels can be configured per port?
For T1, you can configure up to 24 DS0 channels. For E1, you can configure up to 31 DS0 channels (with channel 0 reserved for framing/alignment).
Q5. Does this card support fractional T1/E1?
Yes, it supports fractional configurations, allowing you to use only a portion of the available bandwidth (e.g., n x 64kbps) based on your service provider contract.
