Mocomtech CRS-300 Setting Up Modems, For CDM-570/570L, CDM-600/600L, CDM-625 modems

CRS-300 1:10 Redundancy Switch	Revision 16
Addressing Scheme Information	MN/CRS300.IOM

B.3.1 Setting Up Modems

•Local Modem m, where m is modem position number (1 through 10) on Switch: o MCA = (Switch RCA) + (100 x m)

oSet EDMAC Framing on.

oSet as EDMAC master.

oSet with EDMAC Slave Address Range, ESA = (Modem RCA) + 10

•Distant Modem 1 (attached to the Distant end of link to Modem m):

oRemote control address: no setting required (Remote control not used).

oSet EDMAC Framing on.

oSet as an EDMAC slave.

oSet Slave Address, ESA = (Master ESA) + 1

o MCA = ESA

•Two Distant Modems in a 1:1 configuration:

Set up the on-line modem as for Distant Modem 1, described previously in this section. The offline modem is automatically configured to match the on-line modem. M&C can only be achieved to the online modem.

Note: It is not possible for the offline modem of a 1:1 pair to respond to EDMAC messages directly as it is not transmitting. Using the internal 1:1 link, the online modem polls and retains the off-line modem status. Depending on the modem, this information can be obtained as follows:

1.For CDM-570/570L, CDM-600/600L, CDM-625 modems:

Use OUS (Offline Unit Status) – OUS? for queries. This command/query is available in the following modems/firmware versions:

Modem	Firmware Version
CDM-570	1.4.1 or later
CDM-570L	1.3.1 or later
CDM-600	1.6.1 or later
CDM-600L	1.3.0 or later
CDM-625	1.1.1 or later

2.For CDM-Qx/QxL modems:

Use FLT (Faults and Status) – FLT? for queries. This command/query is available in available in firmware versions 1.6.2 or later.

Note: 1:1 internal redundancy in EDMAC Slave mode is available only in firmware version 1.6.2 or later.

Refer to the appropriate modem’s Installation and Operation Manual for additional information.

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