Figure 1: OMS 1240 Configuration

Figure 2: OMS 1260 Configuration

OMS 1200 provides all the functions of data transmission by mapping user signals to an independent virtual cascaded group (VCG) using data branch cards and GFP encapsulation. In order to effectively transmit user data services, the bandwidth of SDH virtual containers can be flexibly configured. In addition, the LCAS bandwidth management protocol can be applied. According to the user signal bandwidth, GFP encapsulated signals can be transmitted in the following SDH containers: VC-12, VC-12-nv, VC-3, VC-3nv, VC-4, VC-4-nv.

technical data

ITU-T recommendation:
G.703、G.704、G.707、G.783、G.784、G.803、G.841、G.842、G.921、G.957、G.7041（GFP）、G.7042(LCAS)
Swap card capacity options:
SDH OMS 1240, 25 x STM-1, 41 x STM-1
OMS 1260, 30 x STM-1, 54 x STM-1
All VC4/3/12, completely unobstructed
Aggregation interface
STM-16 1310nm and 1550nm-STP
STM-4 1310nm and 1550nm-STP
STM-1 1310nm and 1550nm-STP
STM-1 SFP electrical interface
CWDM Interface - STM-16

General functions:
Frame size: 1600, super large frame size
MAC pause
MAC address learning and forwarding
Independent VLAN Learning (IVL)
802.1Q VLAN aware bridging
RSTP、MSTP
Q-in-Q、802.1ad
CoS processing
Police management, plastic surgery
Queuing, scheduling, 802.1p priority
Link Aggregation
Ethernet snapshot and historical counter RMON
Ethernet OAM (Y.1731, 802.1ag), unit traffic
Open circuit detection

outline dimension
OMS 1240 size:
Vertical installation: H: 445 mm, D: 280mm, W: 218 mm
Horizontal installation: H:218mm/6U,280mm,W:445mm
OMS 1260 size:
Vertical installation: H: 445 mm, D: 280mm, W: 448 mm

electrical environment
OMS 1200 complies with European Electromagnetic Compatibility (EMC) standards:

Resistance tests included in EN 300 386:
EN 55022 (Class B) Radiant emission
EN 61000-4-3 (10 V/m) Radiant Magnetization
ES 201 468 "Second Level Service"
EN 50121-4 conforms to the corresponding track cabinet structure for railway applications
EN 300 489-4 GSM is suitable for building applications with GSM network cabinet structure
FCC Part 15B