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參數(shù)資料
| 型號： | HYC9088AS |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | ARCNET TWISTED PAIR AND COAXIAL COMPLATIBLE HIGH IMPEDANCE TRANSCEIVER HIT |
| 中文描述： | DATACOM, ETHERNET TRANSCEIVER, PSIP20 |
| 封裝： | SIP-20 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 153K |
| 代理商： | HYC9088AS |
6
Combination of Twisted Pair and Coax
Networks
A Two-Port Link is used to combine twisted pair
network and a coax network. A Two-Port Link has
a coax connector on one side and two modular
jacks on the other and contains the proper
impedance-matching circuitry. Refer to Figure 3
for an illustration of a twisted pair network
combined with a coaxial network.
Proper Connection for Twisted Pair
Each twisted pair compatible ARCNET node
would typically have two RJ-11 modular
PARAMETER
connectors mounted on the node card (refer to
Figure 4). PHASE A should be connected to pin 2
of the connectors and PHASE B to pin 3. A
twisted pair segment would have an RJ-11
modular jack on each end (see Figure 5). Please
note that the suggested numbering scheme of the
modular jack shown in Figure 5 may not be
consistent with that found on some manufacturers'
products. Please ensure consistent connection of
Phase A and Phase B signals throughout the
network to avoid the reception of erroneous data.
Table 1 - Specifications for Cabling
VALUE FOR COAX
VALUE FOR TWISTED PAIR
Wiring
RG62
Solid Copper 22, 24, or 26 AWG
Number of Twists/Foot
N/A
2 min.
DC Resistance
3.4 Ohms/1000 ft.
28.6 Ohms/1000 ft. max.
Characteristic Impedance
93 Ohms at 1 MHz
105 Ohms
20% at 1 MHz
Maximum Attenuation
5.5 dB/1000 ft. at 5 MHz
16.0 dB/1000 ft. at 5 MHz
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