IMG 1010 - Rear Panel Description

Diagram:

IMG 1010 Rear Panel

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Overview

The above diagrams illustrate the IMG rear panel I/O connectors. The connectors provide the required interfacing to support the GCEMS (Gate Control Element Management System). Below is a short description of each interface.

CTRL 0, CTRL 1 - 10/100  (Communication to EMS)

These two redundant 10/100BaseT Ethernet connectors provide communication with an external GCEMS or any other device that needs to be secure from the public network. The connectors do not interface with the internal Ethernet switch and are physically isolated from any network internal to the IMG 1010. These auto-negotiating, full duplex connectors support MDIX (cable cross-over) which eliminates the need for crossover cables for point-to-point connections.

DATA 0, DATA 1 - 10/100/1000 (Data and Signaling over IP)

These two redundant 10/100/1000BaseT Ethernet connectors interface to the internal Ethernet switch. These connectors are used to communicate to all devices in the IMG that need to communicate over the public network. All internal connections are 10/100BaseT and are aggregated to 1000BaseT, if required. These auto-negotiating, full duplex connectors support MDIX (cable cross-over) which eliminates the need for crossover cables for point-to-point connections.

SIG 0, SIG 1 - 10/100 (Signaling over IP)

These two redundant 10/100BaseT Ethernet connectors interface to the internal Ethernet switch. These connectors can be logically isolated from the data network or can be used as connections to the data network via software configuration. The connectors bring in signaling over IP. These auto-negotiating, full duplex connectors support MDIX (cable cross-over) which eliminates the need for crossover cables for point-to-point connections.

Signaling/Timing Ports 0 - 3 (T1/E1 Signaling and Timing Span Connectors)

These four RJ-48 connectors are dedicated as T1/E1 interfaces. The connectors provide T1 with 100 ohm impedance and E1 with 120 ohm impedance. Any of the Signaling/Timing Spans support bearer traffic as well as signaling for the SS7, ISDN, and CAS protocols. Any of the four spans can be used to provide signaling, or bearer traffic.

Timing on Signaling Spans: (For more information refer to the Timing(1010) topic

• Signaling Span 0 is pre-configured to accept Primary Loop Timing Source. This can not be configured through ClientView.

• Signaling Span 1 is pre-configured to accept Secondary Loop Timing Source. This can not be configured through ClientView.

• Signaling Spans 2 & 3 along with any bearer span (T1, E1, or a DS1 on a DS3) can have primary or secondary loop timing sources assigned to them.
   

BEARER REDUNDANCY CONNECTION (Reserved for Future Development)

The IMG 1010 does not support 1+1 Redundancy. These connectors are reserved for future IMG development.

BEARER Interfaces

These 28 T1 or 20 E1 connectors are dedicated for 28 T1 or 20 E1 interfaces. The connectors provide T1 with 100 ohm impedance and E1 with 120 ohm impedance. Any one of the these spans support bearer traffic as well as signaling for the SS7, ISDN, and CAS protocols. See also .

Timing on Bearer Spans:

Any Bearer Span 0-27 (T1, E1, or a DS1 on a DS3) can be configured to accept a Primary or Secondary Loop Timing Source.

When configuring an IMG set up to be used as a T1 system, Bearer Ports 0-27 and Signaling Ports 1-4 can be used. (28 Bearer + 4 Signaling) * 24 Channels = 768 Channels)

When configuring an IMG set up to be used as a E1 system, Bearer Ports 0-19 and the Signaling Ports 1-4 can be used. Bearer Ports 20-28 are not used in an E1 configured IMG (20 Bearer Ports + 4 Signaling) * 32 Channels = 768 Channels

Ethernet Control, Signaling and Data Connector LEDs

These Ethernet RJ-45 connectors contain two LEDs that provide the user with Ethernet status.

The figure below shows the RJ-45 Ethernet connector LEDs.

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