Motorola MC50 Specifications download pdf (Page 40)

2 - 14 MC50 with Windows

Mobile 5.0 Integrator Guide

Daisychaining Cradles

Daisychain up to four Ethernet cradles to connect several cradles to an Ethernet network.

To daisychain more than one cradle:

1. Connect power to each cradle to daisychain, as shown in Setup on page 2-13.

2. Connect an Ethernet cable to Port 1 of the first cradle as shown in Setup on page 2-13.

3. Connect a second Ethernet cable between Port 2 of the first cradle, and Port 1 of the second.

4. Connect up to two more cradles as described in Step 3.

Figure 2-16

Daisychaining Four Slot Ethernet Cradles

Bandwidth Considerations when Daisychaining

Each cradle added to the daisychain impacts the bandwidth provided to the inserted mobile computers,

particularly when the mobile computers attempt to send and receive at data rates that exceed the bandwidth

provided to the chain (typically 100 Mbps). If a mobile computer in a daisychained cradle does not use its

bandwidth, that bandwidth is allocated to other inserted mobile computers.

Table 2-4 shows available bandwidth, based on 100 Mpbs, for the maximum number of daisychained cradles,

with each attempting transmission at the maximum data rate.

Table 2-4

Daisychaining Bandwidth

Daisychained Cradles

Bandwidth Provided to Cradle

(Mbit/sec)

Inserted Mobile Computer’s Share of

Bandwidth

Cradle 1 100,000,000 20,000,000

Cradle 2 20,000,000 4,000,000

Cradle 3 4,000,000 800,000

Cradle 4 800,000 160,000

Cradle 5 160,000 32,000

Cradle 6 32,000 6,400

Cradle 7 6,400 1,280

Ethernet Port 1

Ethernet Port 2

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 175 176

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Motorola MC50 Specifications Page 40