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DCD ST
DCD ST 系列 - 用于非屏蔽通信线路的耦合去耦网络
浪涌脉冲和电信浪涌脉冲应用于非屏蔽对称互连线（通信线）
通过独立的耦合/去耦网络。DCD st-4-1 设计用于 4 条线路（2 对），DCD st-8-1
用于 8 行（4 对）。DCD st-8-1 可用于 4、2 或 1 对。
根据IEC 61000-4-5 Ed.3（图10），脉冲通过气体避雷器和每条线路的匹配电阻耦合
DCD ST 系列 - 用于非屏蔽通信线路的耦合去耦网络
浪涌脉冲和电信浪涌脉冲应用于非屏蔽对称互连线（通信线）
通过独立的耦合/去耦网络。DCD st-4-1 设计用于 4 条线路（2 对），DCD st-8-1
用于 8 行（4 对）。DCD st-8-1 可用于 4、2 或 1 对。
根据IEC 61000-4-5 Ed.3（图10），脉冲通过气体避雷器和每条线路的匹配电阻耦合
HIGHLIGHTS
> As per IEC 61000-4-5 Ed.3, Fig 10/A4, ITU K.44
> For test pulse 1.2/50 - 8/20µs and 10/700µs
> Coupling via gas arrestor or other coupling
> Built-in matching resistors
> 20 mH decoupling, current compensated pairs
> Test voltage up to 7 kV
> Line voltage 50 V, 250 V other on request
> Line current 1 A
TECHNICAL DETAILS
SURGE 1.2 /50 US
DCD ST - SERIES - SURGE COUPLING/DECOUPLING NETWORKS FOR COMMUNICATION LINES The AMETEK CTS coupling/ decoupling networks of the DCD st - series are designed to couple Surge pulses (1.2/50 us - 8/20 us) and Telecom Surge pulses (10/700 us) onto unshielded symmetrically operated communication lines. The DCD st - models includes the external coupler (GTD)for coupling via gas arrestor plus the internal matching resistor Rc as per figure 10 of IEC 61000-4-5 Ed.3 with values as per the formula given by the standard. All lines are subjected to the test pulse simultaneously with respect to ground. The DCD st - series also include the required decoupling inductors of 20 mH for each line (pairwise current compensated). To protect the auxiliary equipment being needed for testing the DUT an additional protection circuit is integrated at the communication line input.
SURGE 10/700 US
DCD ST - SERIES - TELECOM SURGE COUPLING/DECOUPLING NETWORKS FOR COMMUNICATION LINES The DCD st - series is designed as per figure A4 of IEC 61000-4-5 Ed.3 without primary protector. If required, an additional primary protector must be integrated according the user specifications. With short circuit bridges and individual designed coupling devices the user can easy modify the coupling mode and number of tested lines to the requirements. AMETEK CTS offers DCD st-4-1 or DCD st-8-1 coupling/decoupling networks for test voltages up to and 7 kV.
MODELL OVERVIEW
| MODELS FOR 5 KV AND 7 KV | |
| DCD 5 st-4-1 | 5 kV, 4 lines (2 pairs), |
| DCD 5 st-8-1 | 5 kV, 8 lines (4 pairs), |
| DCD 7 st-4-1 | 7 kV, 4 lines (2 pairs), |
| DCD 7 st-8-1 | 7 kV, 8 lines (4 pairs), |
DCD 5 ST-4-1 FOR 4 UNSHIELDED SYMMETRICAL LINES
| COMMON DATA DCD 5 ST-4-1 | |
| CDN | for 4 lines (2 pairs) as per IEC 61000-4-5 Ed.3, - Surge pulses (Fig. 10), - Telecom Surge (Fig. A4) |
| Max. voltage | 5 kV impulse |
| Line voltage | max. 50 V / 250 V |
| Line current | max. 1 A |
| Coupling | Selectable - GDT, gas arrestor - Individual CD |
| Matching resistors Rc | Surge Pulse 1.2/50 µs, 4 x 160 Ohm (2 pairs), 2 x 80 Ohm (1 pair) |
| Matching resistors Rc | Telecom surge 10/700 µs, 4 x 25 Ohm |
| Decoupling | 20 mH decoupling inductor, ± 10 % tolerance, pairwise current compensated |
| Residual voltage | at the AE port, 5 kV impulse 88 V (1.2/50 µs), 80 V (10/700 µs) |
| Signal Bandwith | 100 kHz with 600 Ohm load |
| Data rate | up to 3 Mbit/s |
| GENERAL DATA DCD 5 ST-4-1 | |
| Connectors | 4 mm safety lab sockets |
| Dimensions | 19" 3HU, 447 x 400 x 143 mm |
| Weight | approx. 15 kg |
DCD 5 ST-8-1 FOR 8 UNSHIELDED SYMMETRICAL LINES
| COMMON DATA DCD 5 ST-8-1 | |
| CDN | for 8 lines (4 pairs) as per IEC 61000-4-5 Ed.3, - Surge pulses (Fig. 10), - Telecom Surge (Fig. A4) |
| Max. voltage | 5 kV impulse |
| Line voltage | max. 50 V / 250 V |
| Line current | max. 1 A |
| Coupling | Selectable - GDT, gas arrestor - Individual CD |
| Matching resistors Rc | Surge Pulse 1.2/50 µs, 8 x 320 Ohm (4 pairs), 4 x 160 Ohm (2 pairs), 2 x 80 Ohm (1 pair) |
| Matching resistors Rc | Telecom surge 10/700 µs, 8 x 25 Ohm |
| Decoupling | 20 mH decoupling inductor, ± 10 % tolerance pairwise current compensated |
| Residual voltage | at the AE port, 5 kV impulse 85 V (1.2/50 µs), 60 V (10/700 µs) |
| Signal Bandwith | 100 kHz with 600 Ohm load |
| Data rate | up to 3 Mbit/s |
| GENERAL DATA DCD 5 ST-8-1 | |
| Connectors | 4 mm safety lab sockets |
| Dimensions | 19" 3 HU, 447 x 400 x 143 mm |
| Weight | approx. 22 kg |
DCD 7 ST-4-1 FOR 4 UNSHIELDED SYMMETRICAL LINES
| COMMON DATA DCD 7 ST-4-1 | |
| CDN | for 4 lines (2 pairs) as per IEC 61000-4-5 Ed.3, - Surge pulses (Fig. 10), - Telecom Surge (Fig. A4) |
| Max. voltage | 7 kV impulse |
| Line voltage | max. 50 V / 250 V |
| Line current | max. 1 A |
| Coupling | Selectable - GDT, gas arrestor - Individual CD |
| Matching resistors Rc | Surge Pulse 1.2/50 μs, 4 x 160 Ohm (2 pairs), 2 x 80 Ohm (1 pair) |
| Matching resistors Rc | Telecom surge 10/700 μs, 4 x 25 Ohm |
| Decoupling | 20 mH decoupling inductor, ± 10 % tolerance, pairwise current compensated |
| Residual voltage | at the AE port, 5 kV impulse 88 V (1.2/50 μs), 80 V (10/700 μs) |
| Signal Bandwith | 100 kHz with 600 Ohm load |
| Data Rate | up to 1 Mbit/s |
| GENERAL DATA DCD 7 ST-4-1 | |
| Connectors | 4 mm safety lab sockets |
| Dimensions | 19" 6 HU, 447 x 400 x 286 mm |
| Weight | Approx. 20 kg |
DCD 7 ST-8-1 FOR 8 UNSHIELDED SYMMETRICAL LINES
| COMMON DATA DCD 7 ST-8-1 | |
| CDN | for 8 lines (4 pairs) as per IEC 61000-4-5 Ed.3, - Surge pulses (Fig. 10), - Telecom Surge (Fig. A4) |
| Max. voltage | 7 kV impulse |
| Line voltage | max. 50 V / 250 V |
| Line current | max. 1 A |
| Coupling | Selectable - GDT, gas arrestor - Individual CD |
| Matching resistors Rc | Surge Pulse 1.2/50 μs, 8 x 320 Ohm (4 pairs), 4 x 160 Ohm (2 pairs), 2 x 80 Ohm (1 pair) |
| Matching resistors Rc | Telecom surge 10/700 μs, 8 x 25 Ohm |
| Decoupling | 20 mH decoupling inductor, ± 10 % tolerance pairwise current compensated |
| Residual voltage | at the AE port, 5 kV impulse 85 V (1.2/50 μs), 60 V (10/700 μs) |
| Signal Bandwith | 100 kHz with 600 Ohm load |
| Data rate | up to 1 Mbit/s |
| GENERAL DATA DCD 7 ST-8-1 | |
| Connectors | 4 mm safety lab sockets |
| Dimensions | 19" 6 HU, 447 x 400 x 286 mm |
| Weight | Approx. 27 kg |
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