CTC Union FMUX160, Руководство пользователя

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Chapter 2. Installation
17
2.4.2 Rear and Front panel connectors
All Channels are fixed on the rear of the Fiber Multiplexer . As a manufacturer of fiber multiplexers for almost
15 years, our experience has shown that in less than 1% of cases will an operator ever use the expansion feature of a
modular multiplexer which is all E1 or T1. This additional cost for modular design is born by the operator, increasing
operating costs. In this age where costs must be controlled, purchasers should be opting for a low cost fixed design
when available. Maintenance personnel must take on a new mind set to not specify high priced and useless features
when developing compliance documents. Modular designed multiplexers, of this capacity, are neither required or are
they financially viable. Modular designs are reserved for multi ‐ service multiplexers supporting TDM, Data and Voice.
Rear Panel (example FMUX160B)
Rear Panel (example FMUX1600R)
Figure 2 ‐ 3 : Rear Panel Connections
The front panel of the Fiber Multiplexer , holds the optical interfaces, the status and alarm LEDs, the call
button, order wire jack, clear RS ‐ 232 channel and the local management console port. The optical interfaces may be of
the Fixed type or pluggable SFP type. The two optical interfaces provide 1+1 fiber protection. The front panel also
provides the connections to the RS ‐ 232 Console Interface (terminal mode) and to the management network for SNMP
control (when the SNMP option is installed).
Figure 2 ‐ 4 : Front Panel Controls and Indicators
16 x E1/T1 balanced RJ ‐ 45
DC Mains
Terminal Block
Mains Switches
AC Mains
IEC C14
E1 unbalanced BNC
Gigabit Ethernet Switch
Optical
Interfaces
Alarm Contacts
RS ‐ 232
Clear Channel
Console
Management
Port
Optical and Channel
Status
Indicators
Order Wire
Fast Ethernet Switch
SNMP Ethernet
Management
Port
Order Wire
Call Button