OptoSpan2/V.35 là modem quang 1 cổng V.35, khoảng cách quang 40km, đầu quang SC, nguồn 220VAC + 48VDC
| V.35 Interface | |
| Data Rate | N x 64Kbps (N=1 ~ 32) | 
| Connector | 34 pin Female connector | 
| FIBER OPTIC INTERFACE | |
| Transmission Rate | 2.048 Mbps | 
| Line Coding | CMI | 
| Wavelength | 1310 nm or 1550 nm | 
| Connectors | ST, SC , FC | 
| Fiber Type | single-mode 20 to 120km (Option) | 
| GENERAL | |
| Diagnostics | Local and Digital loopbacks activated via DIP switch | 
| E1 Indicators | PWR, AIS, SYN, TST,AIS(E1), SYN(E1) | 
| V.35 Indicators | PWR, AIS,SYS,TST, TD, RD | 
| Power | 100 ~ 240 VAC @ 50 ~ 60 Hz / 5 VDC, 2A | 
| DC: 48/60 VDC nominal or 24 VDC ; Power < 2W | |
| Environment | Temperature: 0-50°C | 
| Humidity: Up to 90%,non-condensing | |
| Physical Dimensions | 25(H) mm X 111.5(W) mm X 131(D) mm | 

