
2. SPECIFICATIONS  | 
2.4 WIRELESS LAN INTERFACE
2.4 WIRELESS LAN INTERFACE
The following specification is applicable only to the GH40 model.
Item  | Description  | 
Communication method  | IEEE802.11b  | 
Supporting print protocol  | Socket/LPR  | 
Communicable distance  | 100 m (When there is no obstacle.)  | 
Client protocol  | DHCP, WINS  | 
Security protocol  | WEP (40 bits/104 bits), MD5/EAP  | 
Flow control  | TCP/IP  | 
Antenna  | |
Parameter setting  | Via HTTP, via IrDA  | 
2.5 IrDA INTERFACE
Item  | Description  | 
Type  | Physical layer conforming to   | 
  | (Low Power)  | 
Transmission speed  | 9,600 ~ 115,200 bps  | 
Communicable distance  | 0.1 m max.  | 
Peak wavelength of  | 870 nm  | 
the infrared ray  | 
  | 
Communicable angle  | ±15 degrees max.  | 
Ambient light immunity  | 1,000 lx max. (under a fluorescent lamp or  | 
  | incandescent lamp)  | 
Protocol  | |
  | transmission  | 
  | Start bit = 1 bit, Stop bit = 1 bit, 8 bit data,  | 
  | Non parity  | 
Data code  | JIS 8 code, Packed BCD code, Shift JIS code  | 
Error detection  | CRC (16 bits),  | 
  | Generating polynomial X16+X12+X5+1  | 
Transmission protocol  | TEC Protocol, Ir COMM   | 
  | 
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