AT&T AT&T manual Optional Power Equipment, Uninterruptible Power Supply

Peripheral Equipment

Peripheral Equipment is equipment that connects to the Call Processor (ZTN82 or ZTN128) CP, including:

●System Administration Terminal (SAT); refer to “System Administration” in section 2.

● Digital Tape Unit (DTU); refer to “Digital Tape Unit” in Section 2.

●Station Message Detail Recording (SMDR) printer or Call Accounting System (CAS); refer to “Station Message Detail Recording” in Section 2.

Auxiliary Equipment

Auxiliary equipment supports System 25 features and services. The following equipment is supported:

● Dictation Equipment; refer to “Dictation System Access” in Section 2.

● External Alerting Equipment; refer to “External Alerts” in Section 2.

● Music Source (Music-On-Hold); refer to “Music-On-Hold”in Section 2.

● Paging Equipment; refer to “Paging System Access” in Section 2.

●Recorded Delay Announcement Equipment; refer to “Direct Group Calling Delay

Announcement” and “Night Service-Delay Announcements” in Section 2.

●Optional Power Equipment.

Notes:

1.Auxiliary equipment connected to the Ztn78 Tip Ring Line CP must meet the following requirements:

—AC impedance: 600 ohms

—DC current less than 30 ma at 24V dc

–Ringer Equivalent Number (REN) less than 1.20

—Distance must not exceed 2000 feet

2. Off-premises auxiliary equipment must		be connected to the TN742 Analog Line CP.
If	the auxiliary equipment requires a	contact closure, the TN763 Auxiliary Trunk
CP	must be used (on-premises service	only).

Optional Power Equipment

In addition to the power supplies already mentioned, the following equipment can be used with System 25.

Uninterruptible Power Supply

The AT&T lKVA Uninterruptible Power Supply (UPS) Model 010U111 PEC 2403-004 is recommended. At maximum load the UPS will bridge a 5 minute power outage. The UPS must be connected to the common System 25 power outlet. One UPS will support a two cabinet system.

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