7, 26, 48
25
25
12
38

Index

A

answer call 68 answer tone 37

always tone 37 incoming tone 37 no answer tone 37 outgoing tone 37

asynchronous data format 45 AT command

connect message options 90 remote configuration 71 response message options 89 response message types 90

AT commands 30, 87 changing S-register strings 32 changing S-registers 32

dialing a call using the AT command processor 32

reading S-register strings 32 reading s-registers 32 using AT commands 31 using S-registers 31

audio 25 auto answer

disabled 36 dump all calls 36 enabled 36

B

B-channel aggregation 84 bit rate 42 BONDING mode 1

C

cable lengths call screening call type 24

audio 25 data 56 kbps data 64 kbps default 25 speech 24, 25

calling number identifiers 88 Capability B 10 Capability C 10 Capability R 9, 10 Capability S 10

carrier detect 88 CD options 43 channel rate 41 clear channel 7, 48

clear to send control line options 89 clock mode

master 40 slave 40

compression 52, 57 configuration 23

quick setup 59 remote 71

configuration menu 18 configure remote unit 73 VT 100 screen 73

connect timeout 38 connector pinouts 115

EIA-232 interface 115

61202.029L2-1

ISU 128 User Manual

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ADTRAN ISU 128 user manual Index
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ISU 128 specifications

The ADTRAN ISU 128 is a versatile and robust integrated service unit designed for network access solutions, particularly within telecommunications and enterprise environments. This unit plays a critical role in enabling high-speed data transmission, supporting various voice, video, and data services over traditional and next-generation networks.

One of the noteworthy features of the ADTRAN ISU 128 is its ability to aggregate multiple digital circuits into a single access point. It supports T1, E1, and fractional T1/E1 interfaces, making it a flexible choice for customers with different bandwidth needs. The unit allows for seamless migration from legacy systems to modern broadband services, ensuring that businesses can scale their operations without significant infrastructure changes.

The ADTRAN ISU 128 also excels in its support for various protocols, including Frame Relay and ATM, providing the necessary flexibility to adapt to different network architectures. This adaptability is essential for businesses that rely on diverse communication platforms to maintain connectivity and operational efficiency.

Another significant aspect of the ISU 128 is its built-in features for diagnostics and monitoring. The unit includes comprehensive loopback and performance monitoring capabilities, which enable network administrators to troubleshoot potential issues proactively. This functionality ensures a reliable connection and minimizes downtime, which is critical for maintaining service-level agreements (SLAs).

In terms of user interface, the ADTRAN ISU 128 is designed with ease of use in mind. The unit can be configured and managed through a web-based graphical user interface, allowing for straightforward remote access to settings and performance metrics. This capability facilitates quick adjustments and upgrades, helping to streamline network management tasks.

The ISU 128 is also built with a strong emphasis on reliability and durability. It is housed in a compact, rack-mountable design, making it suitable for various deployment environments. These characteristics, combined with support for redundant power supplies, enhance the unit's reliability in critical operations.

Overall, the ADTRAN ISU 128 stands out as a powerful solution for organizations seeking to optimize their network access. With its advanced features, compatibility with multiple technologies, and emphasis on reliability, the ISU 128 is an ideal choice for those looking to enhance their communication infrastructure in a rapidly evolving digital landscape.
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