XIRCOM, INC.
PS-CEM-28B2/PS-CEM-28BC/PS-CEM-28BT
| 
 Card Type  | 
 Fax, Modem (synchronous/asynchronous), Network Interface Card  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Cache  | 
 64KB  | 
| 
 Network Transfer Rate  | 
 10Mbps  | 
| 
 Maximum Modem Rate  | 
 28.8Kbps  | 
| 
 Maximum Fax Rate  | 
 14.4Kbps  | 
| 
 Data Bus  | 
 PCMCIA Type II  | 
| 
 Fax Class  | 
 Class I & II  | 
| 
 Data Modulation Protocol  | 
 AT&T V.32terbo Bell 103A/212A ITU-T V.22, V.22bis, V.23, V.32, V.32bis, V.34  | 
| 
 Fax Modulation Protocol  | 
 ITU-T V.17, V.27ter, V.29  | 
| 
 Error Correction/Compression  | 
 MNP5, V.42bis  | 
| 
 Topology  | 
 Linear Bus, Star  | 
| 
 Wiring Type  | 
 Unshielded twisted pair(PS-CEM-28BC, PS-CEM-28BT) RG-58A/U 50ohm coaxial(PS-CEM-28B2, PS-CEM-28BC)  | 
| 
 Boot ROM  | 
 Not available  | 
V1804/N1435
Proprietary AT Command Set
| 
 AUTO-RELIABLE FALLBACK CHARACTER  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %An [cmds]  | 
| 
 Default:  | 
 13  | 
| 
 Range:  | 
 0-127  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Sets the character used as the auto-reliable fallback character. %A0 will disable this function.  | 
| 
 AUTO FALLBACK  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] %Gn [cmds]  | 
| 
 Description:  | 
 Selects auto fallback  | 
| 
 Command  | 
 Function  | 
| 
 í %G0 | 
 Fallback disabled  | 
| 
 %G1  | 
 Fallback enabled  | 
| 
 AUTO-RELIABLE TIME BUFFER  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Cn [cmds]  | 
| 
 Description:  | 
 Controls the handling of incoming data during auto-reliable time period  | 
| 
 Command  | 
 Function  | 
| 
 í \CO | 
 Data is discarded  | 
| 
 \C1  | 
 Data is buffered for 4 seconds or 200 characters  | 
| 
 \C2  | 
 Data is discarded, sets to normal mode and switches to normal mode when &An received  | 
| 
 AUTO-RETRAIN  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT %En  | 
| 
 Description:  | 
 Selects auto-retrain mode  | 
| 
 Command  | 
 Function  | 
| 
 %E0  | 
 Auto-retrain disabled  | 
| 
 í %E1 | 
 Auto-retrain enabled  | 
| 
 BLACKLIST  | |
| 
 Type:  | 
 Read only  | 
| 
 Format:  | 
 AT [cmds] S140? [cmds]  | 
| 
 Description:  | 
 Contains the maximum number of call attempts before number is blacklisted  | 
| 
 BREAK SEND  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Bn [cmds]  | 
| 
 Default:  | 
 3  | 
| 
 Range:  | 
 1-9  | 
| 
 Unit:  | 
 .1 second  | 
| 
 Description:  | 
 Sends break to modem  | 
| 
 BREAK TYPE  | ||||
| 
 Type:  | 
 Configuration  | |||
| 
 Format:  | 
 AT [cmds] \Kn [cmds]  | |||
| 
 Description:  | 
 Configures action of break signal  | |||
| 
 Command  | 
 Break from DTE  | 
 Modem receives \B  | 
 Break received from remote modem  | |
| 
 \K0  | 
 Online command mode enabled, send no break to remote modem  | 
 Break sent to remote modem and buffers cleared  | 
 Buffers cleared, break sent to DTE  | |
| 
 \K1  | 
 Break sent to remote modem and buffers cleared  | 
 Break sent to remote modem and buffers cleared  | 
 Buffers cleared, break sent to DTE  | |
| 
 \K2  | 
 Online command mode enabled, send no break to remote modem  | 
 Send break to remote modem immediately  | 
 Break sent immediately to DTE  | |
| 
 \K3  | 
 Send break to remote modem immediately  | 
 Send break to remote modem immediately  | 
 Break sent immediately to DTE  | |
| 
 \K4  | 
 Online command mode enabled, send no break to remote modem  | 
 Send break with transmitted data  | 
 Break sent with received data to the DTE  | |
| 
 í \K5 | 
 Send break with transmitted data  | 
 Send break with transmitted data  | 
 Break sent with received data to the DTE  | |
| 
 CALLING TONE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] -Cn [cmds]  | 
| 
 Description:  | 
 Controls whether the DTE will allow the modem to send a calling tone  | 
| 
 Command  | 
 Function  | 
| 
 í -C0 | 
 Disable calling tone  | 
| 
 -C1  | 
 Enable calling tone  | 
| 
 COMPRESSION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT %Cn  | 
| 
 Description:  | 
 Selects MNP 5 data compression  | 
| 
 Command  | 
 Function  | 
| 
 %C0  | 
 Data compression disabled  | 
| 
 í %C1 | 
 Data compression enabled  | 
| 
 CONNECT MODE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Nn [cmds]  | 
| 
 Description:  | 
 Sets connect mode  | 
| 
 Command  | 
 Function  | 
| 
 \N0  | 
 Normal mode enabled  | 
| 
 \N2  | 
 Auto-reliable MNP mode enabled  | 
| 
 í \N3 | 
 Auto-reliable V.42 mode enabled  | 
| 
 \N4  | 
 Reliable mode enabled  | 
| 
 CONVERT TO MNP MODE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Z [cmds]  | 
| 
 Description:  | 
 Switches to normal mode from MNP mode  | 
| 
 CONVERT TO RELIABLE MODE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Y [cmds]  | 
| 
 Description:  | 
 Initiates reliable MNP5 mode link  | 
| 
 COUNTRY CODES  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] S133=n [cmds]  | |
| 
 Description:  | 
 Selects country specific operating configuration  | |
| 
 Command  | 
 Function  | |
| 
 í S133=0 | 
 USA  | |
| 
 S133=1  | 
 United Kingdom  | |
| 
 S133=2  | 
 Germany  | |
| 
 S133=3  | 
 France  | |
| 
 S133=4  | 
 Belgium  | |
| 
 S133=5  | 
 The Netherlands  | |
| 
 COUNTRY CODES (CONTINUED)  | |
| 
 S133=6  | 
 Italy  | 
| 
 S133=7  | 
 Spain  | 
| 
 S133=8  | 
 Austria  | 
| 
 S133=9  | 
 Switzerland  | 
| 
 S133=10  | 
 Portugal  | 
| 
 S133=11  | 
 Sweden  | 
| 
 S133=12  | 
 Norway  | 
| 
 S133=13  | 
 Denmark  | 
| 
 S133=14  | 
 Finland  | 
| 
 S133=15  | 
 Cyprus  | 
| 
 S133=16  | 
 Czechoslovakia  | 
| 
 S133=17  | 
 Greece  | 
| 
 S133=18  | 
 Hungary  | 
| 
 S133=19  | 
 Poland  | 
| 
 S133=20  | 
 Russia  | 
| 
 S133=21  | Turkey  | 
| 
 S133=22  | Luxembourg  | 
| 
 S133=23  | Iceland  | 
| 
 S133=25  | Egypt  | 
| 
 S133=26  | India  | 
| 
 S133=27  | Kenya  | 
| 
 S133=28  | South Africa  | 
| 
 S133=29  | Morocco  | 
| 
 S133=48  | Abu Dhabi  | 
| 
 S133=49  | Australia  | 
| 
 S133=50  | Bangladesh  | 
| 
 S133=51  | China  | 
| 
 S133=52  | Hong Kong  | 
| 
 S133=53  | Indonesia  | 
| 
 S133=54  | Japan  | 
| 
 S133=55  | Korea  | 
| 
 S133=56  | Malaysia  | 
| 
 S133=57  | New Zealand  | 
| 
 S133=58  | Philippines  | 
| 
 S133=59  | Singapore  | 
| 
 S133=96  | Argentina  | 
| 
 S133=97  | Bolivia  | 
| 
 S133=98  | Brazil  | 
| 
 S133=99  | Chile  | 
| 
 S133=100  | Columbia  | 
| 
 S133=101  | Costa Rica  | 
| 
 S133=102  | Guatemala  | 
| 
 S133=103  | Mexico  | 
| 
 S133=104  | Nicaragua  | 
| 
 S133=105  | Paraguay  | 
| 
 S133=106  | Peru  | 
| 
 S133=107  | Uruguay  | 
| 
 COUNTRY CODES (CONTINUED)  | |
| 
 S133=108  | Venezuela  | 
| 
 S133=128  | Kuwait  | 
| 
 S133=129  | Oman  | 
| 
 S133=130  | Saudi Arabia  | 
| 
 CREDIT CARD BONG TONE  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] S121=n [cmds]  | |
| 
 Description:  | 
 Selects credit card bong tone  | |
| 
 Command  | 
 Function  | |
| 
 S121=0  | 
 AT&T  | |
| 
 S121=1  | 
 MCI  | |
| 
 DISPLAY CONNECT SPEED  | ||
| 
 Type:  | 
 Read only  | |
| 
 Format:  | 
 AT [cmds] S37=n [cmds]  | |
| 
 Description:  | 
 Displays current DCE speed  | |
| 
 Command  | 
 Function  | |
| 
 S37=5  | 
 1200bps  | |
| 
 S37=6  | 
 2400bps  | |
| 
 S37=7  | 
 4800bps  | |
| 
 S37=8  | 
 7200bps  | |
| 
 S37=9  | 
 9600bps  | |
| 
 S37=10  | 
 12.0Kbps  | |
| 
 S37=11  | 
 14.4Kbps  | |
| 
 S37=12  | 
 19.2Kbps  | |
| 
 S37=15  | 
 28.8Kbps  | |
| 
 S37=26  | 
 16.8Kbps  | |
| 
 S37=29  | 
 24.0Kbps  | |
| 
 S37=33  | 
 21.6Kbps  | |
| 
 S37=34  | 
 26.4Kbps  | |
| 
 ERRONEOUS CALL RETRY  | |
| 
 Type:  | 
 Read only  | 
| 
 Format:  | 
 AT [cmds] S145? [cmds]  | 
| 
 Description:  | 
 Contains value for erroneous call retry  | 
| 
 ERRONEOUS CALL DELAY  | |
| 
 Type:  | 
 Read only  | 
| 
 Format:  | 
 AT [cmds] S146? [cmds]  | 
| 
 Description:  | 
 Contains value for erroneous call delay  | 
| 
 FAST RETRY  | |
| 
 Type:  | 
 Read only  | 
| 
 Format:  | 
 AT [cmds] S141? [cmds]  | 
| 
 Description:  | 
 Enable/disable status for fast retry for trouble calls  | 
| 
 FEATURE NEGOTIATION  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] S48=n [cmds]  | |
| 
 Description:  | 
 Controls feature negotiation with remote modem  | |
| 
 Command  | 
 Function  | |
| 
 S48=0  | 
 No negotiation  | |
| 
 S48=7  | 
 Feature negotiation enabled  | |
| 
 S48=128  | 
 Feature negotiation disabled  | |
| 
 FLOW CONTROL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Gn [cmds]  | 
| 
 Description:  | 
 Selects modem port flow control  | 
| 
 Command  | 
 Function  | 
| 
 í \G0 | 
 Flow control disabled  | 
| 
 \G1  | 
 Flow control enabled  | 
| 
 FLOW CONTROL TYPE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Qn [cmds]  | 
| 
 Description:  | 
 Sets type of flow control used by modem  | 
| 
 Command  | 
 Function  | 
| 
 \Q0  | 
 Flow control disabled  | 
| 
 \Q1  | 
 XON/XOFF flow control enabled  | 
| 
 \Q2  | 
 Unidirectional hardware flow control enabled  | 
| 
 í \Q3 | 
 Bidirectional hardware flow control enabled  | 
| 
 FLOW CONTROL TYPE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Kn [cmds]  | 
| 
 Description:  | 
 Sets type of flow control used by modem  | 
| 
 Command  | 
 Function  | 
| 
 &K0  | 
 Local flow control disabled  | 
| 
 &K1  | 
 Not used  | 
| 
 &K2  | 
 Not used  | 
| 
 í &K3 | 
 CTS/RTS flow control enabled  | 
| 
 &K4  | 
 XON/XOFF flow control enabled  | 
| 
 HELP SCREEN BORDER  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] S120=n [cmds]  | |
| 
 Description:  | 
 Selects help screen display option  | |
| 
 Command  | 
 Function  | |
| 
 S120=0  | 
 Surround help screen text with ASCII character border  | |
| 
 S120=1  | 
 Do not surround help screen text with ASCII character border  | |
| 
 INACTIVITY TIMER  | |
| 
 Type:  | 
 Register  | 
| 
 Format:  | 
 AT [cmds] \Tn [cmds]  | 
| 
 Default:  | 
 0  | 
| 
 Range:  | 
 0-90  | 
| 
 Unit:  | 
 1 minute  | 
| 
 Description:  | 
 Sets the length of time that the modem does not receive information before it disconnects  | 
| 
 INEFFECTIVE CALL DELAY  | |
| 
 Type:  | 
 Read only  | 
| 
 Format:  | 
 AT [cmds] S144? [cmds]  | 
| 
 Description:  | 
 Contains value for ineffective call delay  | 
| 
 INEFFECTIVE CALL RETRY  | |
| 
 Type:  | 
 Read only  | 
| 
 Format:  | 
 AT [cmds] S143? [cmds]  | 
| 
 Description:  | 
 Contains value for ineffective call fast retry  | 
| 
 INITIATE MNP RELIABLE MODE  | |
| 
 Type:  | 
 Immediate  | 
| 
 Format:  | 
 AT [cmds] \O [cmds]  | 
| 
 Description:  | 
 Initiates MNP reliable mode from normal or direct mode  | 
| 
 INTERNATIONAL USAGE  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] %TEn [cmds]  | |
| 
 Description:  | 
 Controls country specific settings  | |
| 
 Command  | 
 Function  | |
| 
 í %TE=0 | 
 International usage disabled  | |
| 
 %TE=1  | 
 S register 133 enabled  | |
| 
 MAXIMUM BLOCK SIZE FOR TRANSMISSION  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \An [cmds]  | 
| 
 Description:  | 
 Sets the maximum transmittable block size  | 
| 
 Command  | 
 Function  | 
| 
 \A0  | 
 MNP block size is 64 characters  | 
| 
 \A1  | 
 MNP block size is 128 characters  | 
| 
 \A2  | 
 MNP block size is 192 characters  | 
| 
 í \A3 | 
 MNP block size is 256 characters  | 
| 
 PSEUDO DTE SPEED  | ||
| 
 Type:  | 
 Configuration  | |
| 
 Format:  | 
 AT [cmds] S122=n [cmds]  | |
| 
 Description:  | 
 Sets DTE speed used by CONNECT message. Has not effect on modem operation  | |
| 
 Command  | 
 Function  | |
| 
 S122=0  | 
 CONNECT  | |
| 
 S122=1  | 
 CONNECT 1200  | |
| 
 S122=2  | 
 CONNECT 2400  | |
| 
 S122=3  | 
 CONNECT 4800  | |
| 
 S122=4  | 
 CONNECT 7200  | |
| 
 S122=5  | 
 CONNECT 9600  | |
| 
 S122=6  | 
 CONNECT 12000  | |
| 
 S122=7  | 
 CONNECT 14400  | |
| 
 S122=8  | 
 CONNECT 16800  | |
| 
 S122=9  | 
 CONNECT19200  | |
| 
 S122=10  | 
 CONNECT 21600  | |
| 
 S122=11  | 
 CONNECT 24000  | |
| 
 S122=12  | 
 CONNECT 26400  | |
| 
 S122=13  | 
 CONNECT 28800  | |
| 
 S122=14  | 
 CONNECT 38400  | |
| 
 S122=15  | 
 CONNECT 57600  | |
| 
 S122=16  | 
 CONNECT 115200  | |
| 
 S122=17  | 
 CONNECT 230400  | |
| 
 RESULT CODES  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Vn [cmds]  | 
| 
 Description:  | 
 Adds /ARQ to connect message  | 
| 
 Command  | 
 Function  | 
| 
 \V0  | 
 Add /ARQ to connect message enabled  | 
| 
 í \V1 | 
 Add /ARQ to connect message disabled  | 
| 
 TROUBLE CALL DELAY  | |
| 
 Type:  | 
 Read only  | 
| 
 Format:  | 
 AT [cmds] S142? [cmds]  | 
| 
 Description:  | 
 Contains value of trouble call delay  | 
| 
 V.32 AUTO-RETRAIN  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] &Bn [cmds]  | 
| 
 Description:  | 
 Selects action the modem will take during bad line quality on V.32/32bis connection  | 
| 
 Command  | 
 Function  | 
| 
 %B0  | 
 Auto-retrain disabled, hang up on poor line quality  | 
| 
 í %B1 | 
 Auto-retrain on line quality problem enabled  | 
| 
 %B2  | 
 Modem ignores line quality problems  | 
| 
 V.42 DETECTION PHASE  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] -Jn [cmds]  | 
| 
 Description:  | 
 Controls V.42 detection  | 
| 
 Command  | 
 Function  | 
| 
 -J0  | 
 V.42 detection disabled  | 
| 
 í -J1 | 
 V.42 detection enabled  | 
| 
 V.42bis COMPRESSION CONTROL  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] "Hn [cmds]  | 
| 
 Description:  | 
 Controls V.42bis data compression  | 
| 
 Command  | 
 Function  | 
| 
 "H0  | 
 V.42bis disabled  | 
| 
 "H1  | 
 V.42bis when transmitting enabled  | 
| 
 "H2  | 
 V.42bis when receiving enabled  | 
| 
 í "H3 | 
 V.42bis when transmitting/receiving enabled  | 
| 
 V.42bis DICTIONARY SIZE  | |
| 
 Type  | 
 Configuration  | 
| 
 Format  | 
 AT [cmds] "Nn [cmds]  | 
| 
 Default  | 
 Unidentified  | 
| 
 Range  | 
 512-2048  | 
| 
 Unit  | 
 1 byte  | 
| 
 Description  | 
 Controls the size of the V.42bis  | 
| 
 V.42bis MAXIMUM STRING LENGTH  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] "On [cmds]  | 
| 
 Default:  | 
 32  | 
| 
 Range:  | 
 6 - 250  | 
| 
 Unit:  | 
 ASCII  | 
| 
 Description:  | 
 Selects string size for V.42bis compression.  | 
| 
 WAIT FOR MNP LINK  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \U [cmds]  | 
| 
 Description:  | 
 Modem waits in on line mode for an MNP link  | 
| 
 XON/XOFF PASS-THROUGH  | |
| 
 Type:  | 
 Configuration  | 
| 
 Format:  | 
 AT [cmds] \Xn [cmds]  | 
| 
 Description:  | 
 Selects whether XON/XOFF signals are sent to remote modem  | 
| 
 Command  | 
 Function  | 
| 
 í \X0 | 
 XON/XOFF signals trapped by local modem  | 
| 
 \X1  | 
 XON/XOFF passed through local modem  |