CHAPTER 2. Hardware of OfficeServ 7030
2-10
© SAMSUNG Electronics Co., Ltd.
The components on the front panel of the base board have the functions below:
Table 2.7 Ports of Base Board
Ports and LEDs
Functions
LAN
Port to connect 100 BASE-T LAN
MISC
Port to connect Ext PAGING, DRY CONTACT and Ext MOH
SLT1, SLT2
Port to connect SLI
RST
Switch for system Reset
Switch for Data base clear when pushed more than 5second
2.3.2 Voice Trunk Line Board
This section describes the boards that offer the voice service of trunk lines.
2.3.2.1 2BM
The 2 BM (2 port BRI Module) provides the digital trunk line. A 2BM board provides
2B+D channels. This board transmits voice via the trunk line and a channel transmits the
voice data of 64 Kbps.
Major Functions
The 2BM voice trunk line board performs the functions below:
Uses 2port T mode
Endures the ITU-recommended level of surge.
Protects the output port by monitoring line signals.
Crystal-less wander and jitter attenuation/compensation to TR62411.
Specifications
The specifications of the 2BM voice trunk line board are as follows:
Two trunk line port
T-Interface: 4 channels
