Span Power Switch S1, Protect Switch S3, Local Power

Span Power Switch S1

This switch selects between span power or local power.

SPAN – The SCIM receives power from the protect card in slot 8.

LOCAL – The SCIM receives power from local -48 VDC to terminal strip TB1 on the SCIM card.

NOTE

Local -48 VDC can be jumpered from the shelf TB1 terminals.

Protection Select/Reset Switch S2

The first function of this pushbutton switch enables or disables standby protection for individual slots (1 through 7). Protection for selected slots can be disabled if cards of a different technology occupy those slots, or to meet SLA agreements. Protection is selected using the following procedure:

1.Depress S2 for 5 seconds. Slot 1 LED will start to flash green; all other LEDs will be OFF. Release S2.

2.To enable protection for slot 1, press and release S2. Slot 1 LED will turn solid green and the LED for slot 2 will begin to flash.

3.To pass over a slot that is not to be protect enabled, wait several seconds while that slot’s LED is flashing. The LED turns OFF and the next LED begins to flash green.

4.Continue this process until the LEDs for all slots designated for protection are ON.

The protect configuration, once established, is maintained in memory.

The second function of this switch is to reset the protect configuration in the event the protect card was enabled to temporarily replace a malfunctioning shelf card. After the system is returned to normal, depressing S2 for a minimum 5 seconds resets the protect configuration stored in memory. Immediately release the pushbutton when the LEDs return to the protect configuration.

Protect Switch S3

This switch controls the protect feature.

ON – All standby and protect functions are active.

OFF – The standby module in slot 8 is cut through and detection circuitry disabled. If the standby card was supplying span power to the SCIM, all the LEDs will be OFF. If the SCIM was receiving local -48 VDC power, all the LEDs will flash red.

NOTE

The protect card in slot 8 should have span power capability either permanent or as an enabled option.

Local Power

Terminal strip TB1 on the SCIM card accepts local -48 VDC power. Installation requires that wiring (14 to 26 AWG) be routed from the back of the SCIM housing.

This arrangement is an alternative to span power the SCIM receives from the protect card. Slide switch S1 selects between span power or the -48 VDC supply.

SCIM frame ground is attained through a separate ground terminal.

4. OPERATIONAL DESCRIPTION

The SCIM card is a component of the Pro-Cap assembly that provides T1 drops to the customer through an RJ-48C or Amphenol connector. The T1 1x7 Controller Card is an enhanced SCIM that also performs manual 1x7 protection switching on T1 (HDSL) services. The controller card is designed to function as a manual protection switch and does not have the capability to address an automatic protection switch function.

T1 protection switching is accomplished through two network elements:

•Central Office Element (COE)

•Remote Element (RE).

The COE functions as the master of the protection switching operation by initiating all commands. The RE will only respond to the COE commands. The controller card and a Network Interface Unit (NIU) represent the RE. A Digital Test Access Unit (DTAU), a Digital Cross-connect, or a T1 Test Set can represent the COE.

The controller card uses the card in slot 8 of the Pro-Cap mounting as the standby service. The NIU in slot 8 will provide the appropriate physical layer interface to the network (i.e. HDSL2, HDSL, or T1 AMI) and 4-Wire T1 AMI physical layer interface to

61190860L1-5B

Section 61190860L1-5, Issue 2

1xN specifications

ADTRAN 1xN is a significant innovation in the realm of broadband network technology, designed to enhance the capacity and efficiency of data transmission in various communications infrastructures. This technology is particularly beneficial for service providers looking to upgrade their existing networks in an economically viable manner.

One of the primary features of ADTRAN 1xN is its ability to support multiple optical network terminals (ONT) from a single fiber source, which drastically reduces the amount of infrastructure required for deployment. This one-to-Many approach allows network operators to extend their service reach while minimizing the cost associated with laying down extensive fiber networks.

ADTRAN 1xN utilizes both Passive Optical Network (PON) and Active Optical Network (AON) technologies. The PON technology grants high-speed data transmission rates, accommodating several service tiers and customer demands, while the AON provides enhanced flexibility and control over data flows for network administrators. This dual-faceted approach enables operators to choose the best deployment strategy to meet specific user needs, whether in residential, commercial, or enterprise environments.

Another characteristic of this technology is its scalability. Providers can easily integrate ADTRAN 1xN into existing networks without needing extensive overhauls, allowing for easy upgrades as customer demand for service increases. This feature ensures that investments in infrastructure remain relevant and capable of handling increased data loads over time.

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In conclusion, ADTRAN 1xN stands out as an inventive and flexible solution for modern broadband service providers. With its combination of advanced optical technologies, scalability, extensive application support, and commitment to energy efficiency, it represents a significant advancement in delivering high-quality, reliable internet connectivity.