P6002ZC Teccor Electronics, Inc., P6002ZC Datasheet - Page 105
![no-image](/images/no-image-200.jpg)
P6002ZC
Manufacturer Part Number
P6002ZC
Description
275 V, four-port longitudinal two-chip protector
Manufacturer
Teccor Electronics, Inc.
Datasheet
1.P6002ZC.pdf
(212 pages)
- Current page: 105 of 212
- Download datasheet (2Mb)
Analog Line Cards
Figure 3.20 SLIC Overview
© 2002 Teccor Electronics
SIDACtor
®
Data Book and Design Guide
F1250T
F1250T
Given that line cards are highly susceptible to transient voltages, network hazards such as
lightning and power cross conditions pose a serious threat to equipment deployed at the
central office and in remote switching locations. To minimize this threat, adequate levels of
protection must be incorporated to ensure reliable operation and regulatory compliance.
Protection Requirements
When designing overvoltage protection for analog line cards, it is often necessary to
provide both on-hook (relay) and off-hook (SLIC) protection. This can be accomplished in
two stages, as shown in Figure 3.20.
The following regulatory requirements may apply:
• GR 1089-CORE
• ITU-T K.20/K.21
• UL 60950
• TIA-968 (formerly known as FCC Part 68)
On-Hook (Relay) Protection
On-hook protection is accomplished by choosing a SIDACtor device that meets the
following criteria to ensure proper coordination between the ring voltage and the maximum
voltage rating of the relay to be protected.
This criterion is typically accomplished using two P2600S_ SIDACtor devices (where _
denotes the surge current rating) connected from Tip to Ground and Ring to Ground.
However, for applications using relays such as an LCAS (Line Card Access Switch),
consider the P1200S_ from Tip to Ground and the P2000S_ from Ring to Ground.
V
V
DRM
S
£ V
Protection
> V
On Hook
Relay Breakdown
BATT
+ V
RING
R
E
A
Y
L
3 - 17
Protection
Off Hook
http://www.teccor.com
Analog Line Cards
C
S
L
I
+1 972-580-7777
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