Serial number
000000
is the default setting and is not a valid number. If this number appears in the sign-
on message, the serial number has never been stored into reader memory. Contact TransCore Technical
Support.
If the flash memory checksum is not verifiable, the sign-on message appears as follows:
Model [E4 BOOT] Ver 0.00 A
[Copyright notice]
If the failure message version number equals
0.00 E
and no serial number exists, the flash memory
checksum has failed, and the Encompass 4 Reader is operating out of boot ROM. In this case, the
Encompass 4 Reader automatically enters download mode and waits for a new program to be loaded into
the flash memory. Follow the instructions in
“Program Download” on page 5–69.
Communications can also be verified by using the command sequence in
.
Table 44 Command Sequence to Verify Communications
Entry
Encompass 4 Reader
Response
Notes
#01 <CR> #Done <CR/LF>
Switches the Encompass 4
Reader to command mode.
#505
<CR>
#Model E4 Series Ver
X.XX SN97001P <CR/LF>
Reports the software version
and serial number.
#00 <CR>
#Done <CR/LF>
Returns the Encompass 4
Reader to data mode.
3. If a successful sign-on message is not returned, check connections and communications factors and
correct any errors.
To check connections and communications factors
1. Confirm that the Encompass 4 Reader has power.
2. Verify the connections between the PC and the Encompass 4 Reader.
3. Verify the receive (Rx), transmit (Tx), and signal ground (sig gnd) connections.
4. If using handshaking, verify the RTS and CTS connections.
5. Verify the COM port settings for the Encompass 4 Reader using the instructions in
.
6. Repeat the procedures in
“Verifying Communications” on page 8–136
If you still cannot verify the Encompass 4 Reader and PC communications, use the information in
“Chapter 9 Troubleshooting and Maintenance” on page 9–149
to contact TransCore.
Verifying Tag Read Capability
After verifying communications between the Encompass 4 Reader and the PC, verify the capability to read
tags.
Chapter 8 Configuring the Encompass 4 Reader
TransCore Proprietary
8–137
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