Quidway® AR 28 Router POS/CPOS Interface Module
Copyright ©2007 Huawei Technologies Co., Ltd. All Rights Reserved.
1
http://datacomm.huawei.com
Quidway® AR 28 Router POS/CPOS Interface Module
Overview
The AR28 router can provide 1-port POS module and 1-port CPOS module respectively.
1CPOS is the abbreviation of 1-port channelized SDH/SONET interface card. Where, C indicates
Channelized and POS indicates Packet Over SDH/SONET. 1CPOS supports one STM-1/OC3
multi-channel interface card and the 155.52 Mbps communication rate.
The 1CPOS interface card falls into RT-1CPOS (E) and RT-1CPOS (T). Where, RT-1CPOS (E)
interface card supports the E1 mode and RT-1CPOS (T) interface card supports T1 mode.
1POS is the abbreviation of 1-port SDH/SONET. Where, POS indicates Packet Over SDH/Sonet
and 1POS interface transmission rate is STM-1/OC-3 (155.52Mbit/s).
1POS data link layer can use PPP, frame relay and HDLC protocol. On the network layer the IP
protocol is used. The 1POS interface is to transfer data packet on SONET/SDH directly.
Specifications
The specifications of POS/CPOS interface module of the AR28 router are shown in the following
table.
Product Number
Connector Type
Description
RT-POS+MM-2Km
SC
1-port 155M POS module – multi-mode 2Km
RT-POS+SM-15Km
SC
1-port 155M POS module – single-mode 15Km
RT-POS+SM-40Km
SC
1-port 155M POS module – single-mode 40Km
RT-1CPOS(E)
LC
1-port 155M cPOS E1 standard optical interface
〔
SFP
〕
module
RT-1CPOS(T)
LC
1-port 155M cPOS T1 standard optical interface
〔
SFP
〕
module
Interface property
The interface properties of POS/CPOS interface module of the AR28 router are shown in the
following table.
RT-1CPOS (E)/ RT -1CPOS (T) interface property
Attribute
Description
Interface standard
SONET OC-3/SDH STM-1
Interface quantity
1
Connector type
SFP(LC)
