Communication Switches

Communication Switch 00 (SP No. 1-104-001)

No

Function

Comments

0-1

Compression modes available in receive mode

These bits determine the compression capabilities to be declared in phase B (handshaking) of the T.30 protocol.

Bit 1

Bit 0

Modes

0

0

MH only

0

1

MH/MR

1

0

MH/MR/MMR

1

1

Do not change

2-3

Compression modes available in transmit mode

These bits determine the compression capabilities to be used in the transmission and to be declared in phase B (handshaking) of the T.30 protocol.

Bit 3

Bit 2

Modes

0

0

MH only

0

1

MH/MR

1

0

MH/MR/MMR

1

1

Do not change

4-7

Not used

Do not change the settings.

Communication Switch 01 (SP No. 1-104-002)

No

Function

Comments

0

ECM

0: Off 1: On

If this bit is set to 0, ECM is switched off for all communications.

In addition, V.8 protocol is switched off automatically.

1-5

Not used

Do not change the setting.

6-7

Maximum printable page length available

The setting determined by these bits is informed to the transmitting terminal in the pre-message protocol exchange (in the DIS/NSF frames).

Bit 7

Bit 6

Setting

0

0

No limit

0

1

B4 (364 mm)

1

0

A4 (297 mm)

1

1

Not used

Communication Switch 02 (SP No. 1-104-003)

No

Function

Comments

0

G3 Burst error threshold

0: Low 1: High

If there are more consecutive error lines in the received page than the threshold, the machine will send a negative response. The Low and High threshold values depend on the sub-scan resolution, and are as follows.

100 dpi

6(L) 12(H)

200 dpi

12(L) 24(H)

300 dpi

18(L) 36(H)

400 dpi

24(L) 48(H)

1

Acceptable total error line ratio

0: 5% 1: 10%

If the error line ratio for a page exceeds the acceptable ratio, RTN will be sent to the other end.

2

Treatment of pages received with errors during G3 reception

0: Deleted from memory without printing

1: Printed

0: Pages received with errors are not printed.

3-7

Not used

Do not change these settings.

Communication Switch 03 (SP No. 1-104-004)

No

Function

Comments

0-7

Maximum number of page retransmissions in a G3 memory transmission

00 - FF (Hex) times.

This setting is not used if ECM is switched on.

Default setting - 03(H)

Communication Switch 06 - Not used (do not change the settings)

Communication Switch 07 - Not used (do not change the settings)

Communication Switch 08 - Not used (do not change the settings)

Communication Switch 0A (SP No. 1-104-011)

No

Function

Comments

0

Point of resumption of memory transmission upon redialing

0: From the error page

1: From page 1

0: The transmission begins from the page where transmission failed the previous time.

1: Transmission begins from the first page, using normal memory transmission.

1-7

Not used

Do not change these settings.

Communication Switch 0B (SP No. 1-104-012)

No

Function

Comments

0-3

Not used

Do not change these settings.

4-7

Not used

Do not change the settings.

Communication Switch 0C - Not used (do not change the settings)

Communication Switch 0D (SP No. 1-104-014)

No

Function

Comments

0-7

The available memory threshold, below which ringing detection (and therefore reception into memory) is disabled

00 to FF (Hex), unit = 4 Kbytes

(e.g., 06(H) = 24 Kbytes)

One page is about 24 Kbytes.

The machine refers to this setting before each fax reception. If the amount of remaining memory is below this threshold, the machine cannot receive any fax messages.

If this setting is kept at 0, the machine will detect ringing signals and go into receive mode even if there is no memory available. This will result in communication failure.

Communication Switch 0E (SP No. 1-104-015)

No

Function

Comments

0-7

Minimum interval between automatic dialing attempts

06 to FF (Hex), unit = 2 s

(e.g., 06(H) = 12 s)

This value is the minimum time that the machine waits before it dials the next destination.

Communication Switch 0F – Not used (do not change the settings.)

Communication Switch 10 (SP No. 1-104-017)

No

Function

Comments

0-7

Memory transmission: Maximum number of dialing attempts to the same destination

01 – FE (Hex) times

Communication Switch 11 – Not used (do not change the settings.)

Communication Switch 12 (SP No. 1-104-019)

No

Function

Comments

0-7

Memory transmission: Interval between dialing attempts to the same destination

01 – FF (Hex) minutes

Communication Switch 13 – Not used (do not change the settings.)

Communication Switch 14 (SP No. 1-104-021)

No

Function

Comments

0

Inch-to-mm conversion during transmission

0: Disabled, 1: Enabled

0: In immediate transmission, data scanned in inch format are transmitted without conversion.

In memory transmission, data stored in the SAF memory in mm format are transmitted without conversion.

Note: When storing the scanned data into SAF memory, the fax unit always converts the data into mm format.

1: The machine converts the scanned data or stored data in the SAF memory to the format which was specified in the set-up protocol (DIS/NSF) before transmission.

1-5

Not used

Do not change the factory settings.

6-7

Available unit of resolution in which fax messages are received

For the best performance, do not change the factory settings.

The setting determined by these bits is informed to the transmitting terminal in the pre-message protocol exchange (in the DIS/NSF frames).

Bit 7

Bit 6

Unit

0

0

mm

0

1

inch

1

0

mm and inch

1

1

Not used

Communication Switch 15 – Not used (do not change the settings)

Communication Switch 1B (SP No. 1-104-028)

No

Function

Comments

0-7

Extension access code (0 to 7) to turn V.8 protocol On/Off

0: On

1: Off

If the PABX does not support V.8/V.34 protocol procedure, set this bit to "1" to disable V.8.

Example: If "0" is the PSTN access code, set bit 0 to 1. When the machine detects "0" as the first dialed number, it automatically disables V.8 protocol. (Alternatively, if "3" is the PSTN access code, set bit 3 to 1.)

Communication Switch 1C (SP No. 1-104-029)

No

Function

Comments

0-1

Extension access code (8 and 9) to turn V.8 protocol On/Off

0: On

1: Off

Refer to communication switch 1B.

Example: If "8" is the PSTN access code, set bit 0 to 1. When the machine detects "8" as the first dialed number, it automatically disables V.8 protocol. (If "9" is the PSTN access code, use bit 1.)

2-7

Not used

Do not change the settings.

Communication Switch 1D - Not used (do not change the settings)

Communication Switch 1E - Not used (do not change the settings)

Communication Switch 1F - Not used (do not change the settings)