ADTRAN
ISU 512
| Card Type | ISDN Modem |
| ISDN Transfer Rate | 512 Kbps |
| Wiring Type | Unshielded twisted pair |
| ISDN Protocol | 2x Clear Channel, Bonding, PPP, V.25 bis |
| Switch Type | AT&T 5 ESS, DNI DMS-100, National ISDN-1, NEC |
CONNECTIONS |
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Function |
Location |
Function |
Location |
| RJ-45 UTP connector 1 | CN1 | RJ-45 UTP Chain out connector | CN6 |
| RJ-45 UTP connector 2 | CN2 | DTE interface via V.35 port | CN7 |
| RJ-45 UTP connector 3 | CN3 | DTE interface via RS-530 port | CN8 |
| RJ-45 UTP connector 4 | CN4 | Dialing interface via RS-366 port | CN9 |
| RJ-45 UTP DCE Chain in/maintenance connector | CN5 | ||
| Note:
RJ-45 UTP connectors 1 - 4 are used to connect to Basic Rate U-interfaces from ISDN
switch. Note: VT 100 terminal or null modem can connect to the Chain in connector. RJ-45 to DB-25 adapter is required. |
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DIAGNOSTIC LED(S) |
|||
LED |
Color |
Status |
Condition |
| RS | Unidentified | On | Request to send |
| RS | Unidentified | Off | No request to send |
| CS | Unidentified | On | Modem is ready to transmit |
| CS | Unidentified | Off | Modem is not ready to transmit |
| TD | Unidentified | On | DTE is transmitting data |
| TD | Unidentified | Off | DTE is not transmitting data |
RD |
Unidentified | On |
Modem is receiving data |
RD |
Unidentified | Off |
Modem is not receiving data |
CD |
Unidentified |
On |
Carrier signal detected |
CD |
Unidentified |
Off |
Carrier signal not detected |
TR |
Unidentified |
On |
DTR signal is high |
TR |
Unidentified |
Off |
DTR signal is low |
| SR | Unidentified | On | Data set ready |
| SR | Unidentified | Off | Data set not ready |
MISCELLANEOUS TECHNICAL NOTES |
| 512 KBPS network rate is achieved with 4 ISDN lines. |
SUPPORTED COMMAND SET |
Basic AT Commands |
| A, |
| &L, &Z |
| Note: See MHI Help File for full command documentation. |
Proprietary AT Command Set
CARRIER DETECT (CD) |
|
| Type: | Configuration |
| Format: | AT [cmds] &Cn [cmds] |
| Description: | Selects Carrier Detect options. |
Command |
Function |
&C0 |
Carrier Detect always on |
&C1 |
Carrier Detect normal mode |
| &C2 | Carrier Detect with local disconnect |
| &C3 | Carrier Detect off link down |
DATA TERMINAL READY (DTR) |
|
| Type: | Configuration |
| Format: | AT [cmds] &Dn [cmds] |
| Description: | Selects modem response to DTR. |
Command |
Function |
&D0 |
Modem does not respond to DTR |
&D1 |
Modem goes to command mode on DTR toggle |
&D2 |
Modem goes to command mode and disconnects (hangs up) on DTR toggle. Auto-Answer is disabled on low DTR. |
DIAL |
|
| Type: | Immediate |
| Format: | AT [cmds] D<#> [cmds] |
| Description: | Dials telephone number. |
FACTORY DEFAULT PROFILE |
|
| Type: | Configuration |
| Format: | AT [cmds] &F [cmds] |
| Description: | Selects default configurations. |
Command |
Function |
&F0 |
Sets S-register values in active profile to values found in the default profile. |
| &F1 | Dial 512K |
| &F2 | Dial 384K |
| &F3 | Dial 448K |
| &F4 | Dial 336K |
| &F5 | Video 384K |
| &F6 | Video 336K |
| &F7 | Leased slave |
| &F8 | Leased master |
HOOK CONTROL |
|
| Type: | Immediate |
| Format: | AT [cmds] Hn [cmds] |
| Description: | The current call disconnects. |
REPORT INFORMATION |
|
| Type: | Immediate |
| Format: | AT [cmds] In [cmds] |
| Description: | Displays information requested |
Command |
Function |
I0 |
Reports modem model |
I1 |
Reports software version |
STORE ACTIVE PROFILE |
|
| Type: | Configuration |
| Format: | AT [cmds] &Wn [cmds] |
| Description: | Writes the values for the active profile into the non-volatile RAM |
STRING-REGISTER |
|
| Type: | Configuration |
| Format: | AT [cmds] SSn [cmds] |
| Description: | Specifies string register |
Special Commands
ISDN SWITCH TYPE |
|
| Type: | Configuration |
| Format: | AT [cmds] _Sn [cmds] |
| Description: | Selects ISDN switch type. |
Command |
Function |
_S0 |
5ESS |
_S1 |
DMS-100 |
_S2 |
NI-1 |
_S3 |
NEC |
ISDN U-INTERFACE OPTIONS |
|
| Type: | Configuration |
| Format: | AT [cmds] _Xn [cmds] |
| Description: | Selects ISDN U-interface operation options. |
Command |
Function |
_X0 |
Timing slaves to network (NT) |
_X1 |
U-interface timing master (LT) |
RESET |
|
| Type: | Immediate |
| Format: | AT [cmds] _Z [cmds] |
| Description: | Modem reset (cycling power) |
S(status) - Registers
2047 TEST TIME |
|
| Type: | Register |
| Format | AT [cmds] S26=n [cmds] |
| Range: | 0 - 255 |
| Unit: | 1 minute |
| Description: | The amount of time given to a remote 2047 test is determined. |
AUTO ANSWER |
|
| Type: | Register |
| Format | AT [cmds] S0=n [cmds] |
| Description: | Determines how calls are answered by modem. |
Command |
Functions |
| 0 | No calls are answered |
| 1 | All calls are answered |
| 2 | All calls are dumped |
BOND TANULL |
|
| Format | AT [cmds] S44=n [cmds] |
| Default: | 10 |
| Range: | 0 - 256 |
| Unit: | 1 second |
| Description: | Selects the amount of time that the Bonding negotiation pattern can be detected by the answering end point from the originating end point, before deciding to abort and clear channel mode. |
| Note: IF DTE equipment connected to modem has timer restrictions for completion of non-Bonding parameter negotiation as well, it may be necessary to shorten this time. | |
BOND TCID |
|
| Format | AT [cmds] S45=n [cmds] |
| Default: | 5 |
| Range: | 0 - 256 |
| Unit: | 1 second |
| Description: | Selects the amount of time agreeable values for bearer channels and channel capacities are negotiated by both endpoints, before deciding to abort and clear channel mode. |
BOND TXADD01 |
|
| Format | AT [cmds] S42=n [cmds] |
| Default: | 50 |
| Range: | 0 - 256 |
| Unit: | 1 second |
| Description: | Selects the amount of time that both end points wait for the additional call connection, at the end of negotiation for before determining failure of Bonding call. |
| Note: May be necessary to lengthen time if dialing overseas. | |
BOND TXDEQ |
|
| Format | AT [cmds] S43=n [cmds] |
| Default: | 5 |
| Range: | 0 - 256 |
| Unit: | 1 second |
| Description: | Selects the amount of time that both end points attempt to equalize network delay between bearer channels, before determining failure of Bonding call. |
BOND TXFA |
|
| Format | AT [cmds] S41=n [cmds] |
| Default: | 10 |
| Range: | 0 - 256 |
| Unit: | 1 second |
| Description: | Selects the amount of time that the Bonding frame pattern can be detected by both end points when call is connected, before determining failure of Bonding call. |
| Note: May be necessary to lengthen time to match TXADD01 if Bonding equipment used from other manufacturer. | |
BOND TXINIT |
|
| Format | AT [cmds] S40=n [cmds] |
| Default: | 10 |
| Range: | 0 - 256 |
| Unit: | 1 second |
| Description: | Selects the amount of time that the Bonding negotiation pattern can be detected by the originating end point from the answering end point, before determining failure of Bonding call. |
CALL SCREENING |
|
| Type: | Register |
| Format | AT [cmds] S58=n [cmds] |
| Description: | Incoming call screening selection. |
| Command | Function |
| 0 | All calls answered |
| 1 | Calls answered that match stored numbers in SN0 - SN9 only |
CALL TYPE |
|
| Type | Register |
| Format | AT [cmds] S53=n [cmds] |
| Description | Call type selected. |
Command |
Function |
| 0 | Speech |
| 1 | Audio |
| 2 | 56kbps data |
| 3 | 64kbps data |
DIAL INTERFACE |
|
| Type: | Register |
| Format: | AT [cmds] S55=n [cmds] |
| Description: | Dialing interface selected. |
| Command | Function |
| 0 | Front panel only |
| 1 | RS-366 port |
| 3 | V.25 bis |
DTE CD |
|
| Type: | Register |
| Format: | AT [cmds] S33=n [cmds] |
| Description: | Carrier Detect line operation controlled on DTE connectors. |
| Command | Function |
| 0 | CD always on |
| 1 | CD active during call |
| 2 | LOCD |
| 3 | Off Link Down |
DTE CONNECTOR |
|
| Type: | Register |
| Format | AT [cmds] S35=n [cmds] |
| Description: | Selects which DTE connector is used. |
| Command | Function |
| 0 | V.35 connector selected |
| 1 | RS-530 connector selected |
DSR ON DTE |
|
| Type: | Register |
| Format: | AT [cmds] S32=n [cmds] |
| Description: | DSR signal operation determined on DTE connectors. |
Command |
Function |
| 0 | DSR always on |
| 1 | DSR active during call |
| 2 | DSR active when network interface is active |
DTE DTR |
|
| Type: | Register |
| Format | AT [cmds] S34=n [cmds] |
| Description: | Sets modem responses to changes in DTR. |
| Command | Function |
| 0 | DTR ignored |
| 2 | Incoming call dumped when DTR is off |
| 4 | Incoming call goes on hook when DTR is off |
| 8 | Outgoing call goes on hook when DTR is off |
LEASED LINE CLOCK MODE |
|
| Type: | Register |
| Format | AT [cmds] S51=n [cmds] |
| Default: | 0 |
| Description: | Leased line clock mode selected. |
Command |
Function |
| 0 | Slave |
| 1 | Master (limited distance, leased line only) |
LDN1 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S68=n [cmds] |
| Description: | LDN1 location |
LDN2 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S69=n [cmds] |
| Description: | LDN2 location |
LDN3 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S70=n [cmds] |
| Description: | LDN3 location |
LDN4 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S71=n [cmds] |
| Description: | LDN4 location |
LDN5 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S72=n [cmds] |
| Description: | LDN5 location |
LDN6 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S73=n [cmds] |
| Description: | LDN6 location |
LDN7 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S74=n [cmds] |
| Description: | LDN7 location |
LDN8 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S75=n [cmds] |
| Description: | LDN8 location |
LINE MODE |
|
| Type: | Register |
| Format: | AT [cmds] S50=n [cmds] |
| Description: | Modem line mode selected. |
| Command | Function |
| 0 | Dial (switched) |
| 1 | Leased (non-switched) |
NO CARRIER TIME-OUT |
|
| Type: | Register |
| Format | AT [cmds] S7=n [cmds] |
| Default: | 30 |
| Description: | Maximum wait time the modem uses after dialing to detect a carrier signal from the remote modem for outgoing calls. |
Command |
Function |
| 15 | 15 seconds |
| 30 | 30 seconds |
| 60 | 60 seconds |
| 120 | 120 seconds |
| 240 | 240 seconds |
RS-366 ADAPTER |
|
| Type: | Register |
| Format | AT [cmds] S89=n [cmds] |
| Description: | Disables or enables RS-366 Y adapter cable. |
| Command | Function |
| 0 | Y cable is disabled |
| 1 | Y cable is enabled |
RS-366 WAIT TIME |
|
| Type: | Register |
| Format: | AT [cmds] S47=n [cmds] |
| Description: | Selects the duration of time that the RS-366 port waits for either EON or inactivity to terminate dial string, before dialing a number. |
Command |
Function |
| 0 | EON wait only |
| 10 | 1 second wait or EON wait |
| 20 | 2 seconds wait or EON wait |
| 50 | 5 second wait or EON wait |
| 100 | 10 second wait or EON wait |
| 200 | 20 second wait or EON wait |
RS-530 TO V.35 ADAPTER |
|
| Type: | Register |
| Format | AT [cmds] S88=n [cmds] |
| Description: | Disables or enables RS-530 to V.35 adapter cable. |
| Command | Function |
| 0 | Adapter cable disabled |
| 1 | Adapter cable enabled |
SPID1 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S60=n [cmds] |
| Description: | SPID1 location |
SPID2 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S61=n [cmds] |
| Description: | SPID2 location |
SPID3 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S62=n [cmds] |
| Description: | SPID3 location |
SPID4 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S63=n [cmds] |
| Description: | SPID4 location |
SPID5 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S64=n [cmds] |
| Description: | SPID5 location |
SPID6 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S65=n [cmds] |
| Description: | SPID6 location |
SPID7 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S66=n [cmds] |
| Description: | SPID7 location |
SPID8 LOCATION |
|
| Type: | Register |
| Format | AT [cmds] S67=n [cmds] |
| Description: | SPID8 location |
STORED NUMBER 0 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS90=n [cmds] |
| Description: | Stored number 0 location |
STORED NUMBER 1 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS91=n [cmds] |
| Description: | Stored number 1 location |
STORED NUMBER 2 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS92=n [cmds] |
| Description: | Stored number 2 location |
STORED NUMBER 3 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS93=n [cmds] |
| Description: | Stored number 3 location |
STORED NUMBER 4 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS94=n [cmds] |
| Description: | Stored number 4 location |
STORED NUMBER 5 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS95=n [cmds] |
| Description: | Stored number 5 location |
STORED NUMBER 6 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS96=n [cmds] |
| Description: | Stored number 6 location |
STORED NUMBER 7 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS97=n [cmds] |
| Description: | Stored number 7 location |
STORED NUMBER 8 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS98=n [cmds] |
| Description: | Stored number 8 location |
STORED NUMBER 9 STRING LOCATION |
|
| Type: | Register |
| Format | AT [cmds] SS99=n [cmds] |
| Description: | Stored number 9 location |
SWITCH TYPE |
|
| Type: | Register |
| Format | AT [cmds] S52=n [cmds] |
| Description: | Network switch type selected. |
| Command | Function |
| 0 | 5ESS |
| 1 | DMS-100 |
| 2 | NI-1 |
| 3 | NEC |