Raisecom iTN2100, Hardware Description, Page: 58 / 312

Raisecom
iTN2100 (P100R002) Hardware Description
6 SDH aggregation card
Raisecom Technology Co., Ltd.
29
6.1 OPCOM3500E-2STM1/4-M
6.1.1 Appearance and functions
Appearance Function
 Provide two SFP optical interfaces. On these interfaces, you can set the interface rate to
STM-1 or STM-4 through hardware DIP switch or software configuration (higher
priority).
 Provide card-level hot backup of two optical aggregation cards. If one fails, the other can
still enable the system to work properly.
 An aggregation card can provide multiplexing section protection, channel protection, or
two independent lines of STM optical interface; two aggregation cards can provide
multiplexing section protection and channel protection between optical interface 1 of one
card and optical interface 1 of the other, and between optical interface 2 of one card and
optical interface 2 of the other, or four independent lines of STM-4/STM-1 optical
interface. The protection switchover time is smaller than 50ms.
 Support point-to-point, link, and ring network topology.
 Support inter-card protection for tributary cards.
 Support VC4/VC3/VC12 level cross connection. When the optical interface rate of the
aggregation card is STM-1, it supports 20×20 VC4, 60×60 VC3, and 1260×1260 VC12
cross connection. When the optical interface rate of the aggregation card is STM-4, it
supports 32×32 VC4, 96×96 VC3, and 2016×2016 VC12 cross connection.
 Support SDH line clock, external clock, and crystal oscillator as clock source of the
iTN2100. These sources provide protection by priority or by clock quality. The card
provides 2 Mbit/s or 2 MHz external clock interface, complying with the ITU-T G.813
recommendations. The 2 Mbit/s or 2 MHz external clock module can be purchased
independently.
 Provide Automatic Laser Shutdown (ALS) for optical modules.

Provide E1 Bit Error Rate Tester (BERT).

Support Loss of Power (LPR) detection alarm for remote devices.
 Provide ECC inband NMS channel with 3/9/12 byte.
 Provide complete alarm and performance monitoring.
 Provide four VCC channels.
 Provide hot swapping.
6.1.2 Slots
The OPCOM3500E-2STM1/4-M can be plugged into slots 6 and 7.