4STM1 (4-Port 155M Packet over SDH/SONET Optical Interface Card)
Card Overview
The 4STM1 is a high-speed WAN access module. Normally, a 4STM1 card provides 155 Mbit/s bandwidth on all the four interfaces for connection to a synchronous digital hierarchy (SDH) network. You can set the bandwidth on interface 0 to 622 Mbit/s by disabling interfaces 1-3. 4STM1 cards are often used for MAN or WAN connection.
A 4STM1 card can be installed in a WSIC slot of a router.
Figure 7-160 shows the appearance of a 4STM1 card.
Version Mapping
Table 7-355 lists the device models and software versions supporting the 4STM1.
Functions and Features
Table 7-356 describes the functions and features of a 4STM1 card.
Function and Feature |
Description |
|---|---|
Basic functions |
Provides high-speed connection to an SDH network to complete high-efficient, secure IP data transmission between enterprise branches. |
Supports transmission rates of 155 Mbit/s and 622 Mbit/s for you to select flexibly. NOTE:
You can set the rate of interface 0 to 622 Mbit/s by disabling interfaces 1 to 3. |
|
Protocol |
Conforms to synchronous digital hierarchy (SDH) or synchronous optical network (SONET) standards. |
Supports link layer protocols High-Level Data Link Control (HDLC), Point-to-Point Protocol (PPP), and Frame Relay (FR). |
Panel
Figure 7-161 shows the indicators on a 4STM1 card, and Table 7-357 describes the indicator states and meanings.
Number |
Indicator |
Color |
Description |
|---|---|---|---|
1 |
STAT |
Green |
Slow blinking: The system is running properly. Fast blinking: The system is being powered on or restarting. Steady on: The card has been powered on, but the software is not running. |
Red |
Steady on: A fault that affects services has occurred and cannot be rectified automatically. The fault needs to be rectified manually. |
||
Orange |
The card has been properly installed and detected by the system. |
||
2 and 3 |
SFP interface indicators:
|
Green |
LINK indicator steady on: A link has been established. |
LINK indicator off: No link is established. |
|||
Yellow |
ACT indicator blinking: Data is being transmitted or received. |
||
ACT indicator off: No data is being transmitted or received. |
Figure 7-162 shows the interfaces on a 4STM1 card.
1. Four 155M POS optical interfaces NOTE:
You can set the rate of interface 0 to 622 Mbit/s by disabling interfaces 1 to 3. For details about the 622M optical module, see 622M eSFP Optical Modules. |
POS optical interface
Attribute |
Description |
|---|---|
Connector type |
LC/PC |
Optical attributes |
Depending on the optical module used. For details, see SFP-FE-SX-MM1310, eSFP-FE-LX-SM1310, S-SFP-FE-LH40-SM1310, and 622M eSFP Optical Modules. |
Standards compliance |
STM-1/STM-4 |
Frame format |
SDH/SONET |
Network protocol |
IP |
Technical Specifications
Table 7-359 lists the technical specifications of a 4STM1 card.
Item |
Specification |
|---|---|
Card type |
WSIC |
Hot swap |
Supported |
Physical specifications |
|
Environment parameters |
|
Ordering Information
To place an order, visit https://e.huawei.com/en/how-to-buy to find the local supplier or submit your inquiries online.
Table 7-360 provides 4STM1 card ordering information.