Universal Switching Module Enhanced
T1 | • | HCS masking (on or off) |
| • Payload scramble (on or off) | |
| • | Loop clock (enable/disable) |
| • Line framing (ESF or D4) | |
| • Cable length (0 to 655 feet, ABAM cable only) | |
| • | Idle code |
| • Line coding (fixed as B8ZS) | |
|
|
|
E1 | • | HCS masking (on or off) |
| • Payload scramble (on or off) | |
| • Line DS0 map (timeslots 0 to 31 for unframed or 1 to 15 and 17 to 31 for framed | |
|
| format) |
| • | Loop clock |
| • | Idle code |
| • Line coding (fixed as HDB3) | |
| • Receive line impedance (BNC fixed at 75 ohms; | |
|
|
|