HYC9088AR SMSC [SMSC Corporation], HYC9088AR Datasheet - Page 6

• Manufacturer Part Number: HYC9088AR
• Description: ARCNET TWISTED PAIR AND COAXIAL COMPLATIBLE HIGH IMPEDANCE TRANSCEIVER HIT
• Manufacturer: SMSC [SMSC Corporation]

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
Wiring
Number of Twists/Foot
DC Resistance
Characteristic Impedance
Maximum Attenuation
PARAMETER
have
two
RJ-11
RG62
N/A
3.4 Ohms/1000 ft.
93 Ohms at 1 MHz
5.5 dB/1000 ft. at 5 MHz
Table 1 - Specifications for Cabling
VALUE FOR COAX
modular
6
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.
twisted pair segment would
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.
Solid Copper 22, 24, or 26 AWG
2 min.
28.6 Ohms/1000 ft. max.
105 Ohms  20% at 1 MHz
16.0 dB/1000 ft. at 5 MHz
VALUE FOR TWISTED PAIR
have
an
RJ-11
A