Hardware Specifications
C.2.7 45 Mbps DS3 Module
The following specifications apply to network modules
Description | Specification |
|
|
Port Capacity | Two or four DS3 ports per module |
|
|
Data Rate | 44.736 Mbps |
|
|
Output Buffer | 13,312 cell capacity |
|
|
Media | Coaxial |
|
|
Max. Line Length | ~450 ft |
|
|
Connector | BNC |
|
|
Line Encoding | B3ZS |
|
|
Framing | |
|
|
Clock Accuracy | ±20 ppm |
|
|
Timing | Primary and secondary 8kHz reference from |
| internal (default) or network |
|
|
Loopbacks | Transmit and receive loopbacks |
|
|
Impedance | 75 ohms nominal |
|
|
Statistics/Alarms | Line code violations (LCV), framing bit errors |
| (FER), |
| sequence (HCS) errors, cells received (RxCells), |
| cells transmitted (TxCells), signal/clock detec- |
| tion, and AIS indication |
|
|
Compliance | ATM Forum DS3 UNI v3.1, ANSI/Bellcore |
| T1.102, T1.107, |
|
|
