The ISDN-U surge protector connects directly between ISDN twisted pair cables and their respective I/O ports. Grounding is accomplished using an external ground strap that provides a separate unit ground to chassis ground connection. By shunting threatening voltages directly to chassis ground the unit insures data integrity and protects connected equipment from damage.
The unit uses a solidstate design and sophisticated multistage hybrid circuits (avalanche diodes) to achive maximum protection without performance loss.
Connectors — (2) RJ45, (1) braided ground strap
Wires protected — 3, 6, 4, 5
Signals supported —
SP050A: ISDN-U,
SP060A: ISDN-S/T
Clamp voltage — 60 V
Peak pulse current — 132 A
Response time — 500 ns
Max. data rate — 100 Mbps
Max. shunt capacitance — 40 pF
Interface — 4-wire (TX & RX)
Material — Enclosure: plastic
Series Resistance —.340 Ohms
[b]Dimensions — 22H x 76W x 41 D mm
Weight — 0.1 kg
Operating temperature range— 0 to 40 ºC
Operating humidity range — 10 to 90% RH, non-condensing
Enclosure — plastic
Approvals — UL listed
(1) Unit
(1) Operation manual
(1) 15 cm RJ45 patch cord