| User alarm requirements | |||
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The UMTS cabinet has capacity for 32 alarms. Alarms 0 - 6 are reserved for power alarms. Alarms 7 - 31 are customer assignable. (Alarms 7 - 15, however, are not available if a 3GP24i power cabinet is used.) Power alarm cabling is provided by the manufacturer of the power equipment. User alarm cabling is provided in site preparation.
Each user alarm generated shall be provided by a set of isolated dry relay contacts. An “alarm state” may be indicated by a “closed circuit” or an “open circuit”. If an alarm condition is indicated by a “closed circuit”, the alarm contacts shall present a contact closure when the alarm circuit fails or loses power. If an alarm condition is indicated by and “open circuit”, the alarm contacts shall present an “open circuit” when the alarm circuit fails or loses power. The resistance of a “closed circuit” shall be less than 100 ohms. The resistance of an “open circuit” shall be greater than 1 megahoms.
The user alarm facilities must be installed as part of site preparation. If required, the user alarm interface shall be equipped with a primary protection device. The user alarm cable is 0.25 mm2 (24-AWG), and consists of 16 twisted pair and is equipped with a 37-Pin, male D-sub connector at one end. The cable is 10 m (35 ft) long, and is color coded in accordance with standard telephone industry cable. The cable may be ordered from Alcatel-Lucent.
The Z-IDC block is required for termination of the first nine user alarms (alarm 7 through alarm 15 using the first alarm cable). If applicable, additional Z-IDC blocks may be required for the next 14 user alarms (alarms 16 through 31 using the second alarm cable). Z-IDC punchdown blocks may be ordered from Alcatel-Lucent. The Z-IDC blocks must be located within 10 m (35 ft) of the UMTS cabinet.
Important! In the United States, refer to Article 800 of the National Electrical Code, NFPA 70, for selection and installation of the primary protector. In Canada, refer to Section 60 of the Canadian Electrical Code, Part I, CSA C22.1 for selection and installation of the primary protector.
For International applications, refer to ITU K.11, Principles of Protection Against Overvoltages and Overcurrents.
The user alarm cables are terminated on the Z-IDC punchdown block as shown in the following table.
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Cable # |
Alarm # |
Wire Color |
Punchdown position (ZIDC block and position) (See Note) |
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USER ALARMS 0 THROUGH 6 UTILIZED FOR POWER ALARMS ( Appendix C, Electrical power requirements for customer supplied power +24/-48 VDC systems) | |||
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Cable #1 |
User 7 Alarm |
Red-Green |
6-1 Upper (+) |
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Green-Red |
6-1 Lower (-) | ||
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User 8 Alarm |
Red-Brown |
6-2 Upper (+) | |
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Brown-Red |
6-2 Lower | ||
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User 9 Alarm |
Red-Slate |
6-3 Upper (+) | |
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Slate-Red |
6-3 Lower | ||
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User 10 Alarm |
Black-Blue |
6-4 Upper (+) | |
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Blue-Black |
6-4 Lower | ||
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User 11 Alarm |
Black-Orange |
6-5 Upper (+) | |
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Orange-Black |
6-5 Lower | ||
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User 12 Alarm |
Black-Green |
6-6 Upper (+) | |
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Green-Black |
6-6 Lower | ||
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User 13 Alarm |
Black-Brown |
6-7 Upper (+) | |
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Brown-Black |
6-7 Lower | ||
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User 14 Alarm |
Black-Slate |
6-8 Upper (+) | |
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Slate-Black |
6-8 Lower | ||
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User 15 Alarm |
Yellow-Blue |
6-9 Upper (+) | |
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Blue-Yellow |
6-9 Lower | ||
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Cable #2 |
User 16 Alarm |
White-Blue |
8-1 Upper (+) |
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Blue-White |
8-1 Lower (-) | ||
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User 17 Alarm |
White-Orange |
8-2 Upper (+) | |
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Orange-White |
8-2 Lower (-) | ||
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User 18 Alarm |
White-Green |
8-3 Upper (+) | |
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Green-White |
8-3 Lower (-) | ||
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User 19 Alarm |
White-Brown |
8-4 Upper (+) | |
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Brown-White |
8-4 Lower (-) | ||
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User 20 Alarm |
White-Slate |
8-5 Upper (+) | |
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Slate-White |
8-5 Lower (-) | ||
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User 21 Alarm |
Red-Blue |
8-6 Upper (+) | |
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Blue-Red |
8-6 Lower (-) | ||
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User 22 Alarm |
Red-Orange |
8-7 Upper (+) | |
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Orange-Red |
8-7 Lower (-) | ||
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User 23 Alarm |
Red-Green |
8-8 Upper (+) | |
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Green-Red |
8-8 Lower (-) | ||
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User 24 Alarm |
Red-Brown |
9-1 Upper (+) | |
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Brown-Red |
9-1 Lower (-) | ||
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User 25 Alarm |
Red-Slate |
9-2 Upper (+) | |
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Slate-Red |
9-2 Lower (-) | ||
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User 26 Alarm |
Black-Blue |
9-3 Upper (+) | |
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Blue-Black |
9-3 Lower (-) | ||
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User 27 Alarm |
Black-Orange |
9-4 Upper (+) | |
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Orange-Black |
9-4 Lower (-) | ||
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User 28 Alarm |
Black-Green |
9-5 Upper (+) | |
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Green-Black |
9-5 Lower (-) | ||
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User 29 Alarm |
Black-Brown |
9-6 Upper (+) | |
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Brown-Black |
9-6 Lower (-) | ||
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User 30 Alarm |
Black-Slate |
9-7 Upper (+) | |
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Slate-Black |
9-7 Lower (-) | ||
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User 31 Alarm |
Yellow-Blue |
9-8 Upper (+) | |
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Blue Yellow |
9-8 Lower (-) | ||
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The Z-IDC positions 9 and 10 are not used | |||
Important! Alarms 7-15 not available when using a 3GP24i power cabinet. See Appendix C, Electrical power requirements for customer supplied power +24/-48 VDC systems for non-Lucent power.
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