| NO. | Model | Description | Price |
|---|---|---|---|
| 1 | SP-OS4-TCSLT-AC | 24x7x2 Onsite Svc. Signaling Link Terminal (AC) | $1494.00 |
| 2 | SP-OS4-TCSLTAC51 | 24x7x2 Onsite Svc. Signaling Link Terminal (AC) | $1983.00 |
| 3 | SP-OS4-TCSLTDC51 | 24x7x2 Onsite Svc. Signaling Link Terminal (DC) | $1983.00 |