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Appendix A
Specifications
Standards
IEEE 802.3 10BaseT Ethernet
IEEE 802.3u 100BaseT(X)/100BaseF(x) Fast Ethernet
IEEE802.3x Flow Control and Back pressure
Protocols
CSMA/CD
Technology
Store and Forward switching architecture
Transmission Rate
14,880 pps for Ethernet port
148,800 pps for Fast Ethernet port
MAC address table size
2K MAC address table
Transfer packet size
64 bytes to 1522 bytes (with VLAN tag)
Memory Buffer
1Mbits
LED
Per port:
Link/Activity (Green)
Full duplex/Collision (Orange)
Per unit:
Power, Power 1,Power 2(Green), Fault (Yellow), Master
(Green)
Network Cables
10BaseT:
twisted-pair UTP/STP Cat. 3, 4, 5 cable
EIA/TIA-568 100-ohm (100m)
100BaseT(X):
twisted-pair UTP/STP Cat. 5 cable
EIA/TIA-568 100-ohm (100m)
Back plane
JetNet 3505: 1.0 Gbps
JetNet 3508: 1.6 Gbps
Throughput
JetNet 3505: 0.74 Mpps @ 64 bytes (5TX)
JetNet 3508: 1.19 Mpps @ 64 bytes (8TX)
Power Supply
12 to 48 VDC, redundant dual DC power inputs with reverse polarity
protection, and a removable terminal block for master and slave VDC
power inputs.
Power consumption
JetNet 3505: 3 Watts
JetNet 3508: 4.6 Watts
Relay alarm current carry
ability
1A @ DC 24V
Installation
DIN-Rail kit and wall mounting panel
Operating Temperature
0°C to 60°C
Operating Humidity
5 to 95% (non-condensing)
