User manual

Raisecom Technology Co., Ltd

3. Parameters

3.1. V.35 Interface Specification

Physical characteristic: Compliant to V.35 interface specification

Type of interface: ISO2593 female connector (34-pin female)

Working mode: DCE

Bit rate: N*64Kbps (N=1~31) at framed E1 mode

2048Kbps at unframed E1 mode

3.2. Ethernet Interface Specification

Ethernet auto-negotiation and auto-MDI/MDIX capabilities can be enabled and disabled

Supports IEEE 802.3 and IEEE 802.3u standard, auto-negotiation or forced working mode

Supports IEEE 802.1d Spanning Tree

Supports IEEE 802.1q VLAN

Supports oversized Ethernet data frame up to 1916 bytes

Transmission speed: 10/100M auto negotiation

Flow control: IEEE802.3x and back pressure

3.3. Optical Interface Specification

Named bit rate: 150Mbps

Fiber connector: SC

Transmission distance: Multi-mode dual-strand M=0~2km

Single mode dual-strand S1=0~25km, S2=10~60km, and S3=15~120km

Single mode single strand dual-wavelength S1=0~25km and S2=10~50km

3.4. Occupation of V.35 Interface Bandwidth in Framed E1 Timeslot

z Occupation of timeslot in PCM31 mode

In PCM31 mode, N ≤ 31, Slot 0 is occupied. N shall be counted from Slot 1.

TS[1] TS[N]

……

TS[31]

V.35 BANWIDTH

TS[0]

z Occupation of timeslot in PCM30 mode

In PCM30 mode, N ≤ 30, Slot 0 and Slot 16 are occupied. N shall be counted form Slot 1, and Slot 16

shall be skipped if N is larger than 16.