Comtech EF Data MiniMac Installation ManualOperation Manual Operation Manual - Manual (Page 120)

Installation MINIMAC Rack Management System
2–18 Rev. 0
2.4.5 COMM 7 Installation
The COMM 7 Rack is identified as the SDM-658 Modem Rack (Figure 2-9). Install the
equipment as follows:
1. Modem M&C Boards – Set Switch Pack #1 as follows:
Command Response
Set Baud Rate 9600 bit/s
Set Parity EVEN
2. Set jumpers as follows:
Command Response
Set Remote Operation 485
2. Install an SDM-308-4 Data Modem into the first rack slot. The modem should be
identified as the Backup #1. Set Switch Pack #2 ( M&C Board) Remote Address
to 9.
3. Install an SDM-308-5 Data Modem into the second rack slot. The modem should
be identified as the Backup #2. Set Switch Pack #2 ( M&C Board) Remote
Address to 10.
4. Install an SMS-658 Switch into the third rack slot. (This unit will permit
switching from Primary to Backup units.) Set the following:
Command Response
Set Remote Address 11
Set Baud Rate 9600 bit/s
Set Parity EVEN
Set Remote Operation RS-485 (2-wire)
5. Install an SDM-308-4 Data Modem into the fourth rack slot. The modem should
be identified as Primary #1. Set Switch Pack #2 Remote Address to 1.
6. Install an SDM-308-5 Data Modem into the fifth rack slot. The modem should be
identified as Primary #2. Set Switch Pack #2 Remote Address to 2.
7. Attach a ribbon cable (customer-furnished) to the REMOTE port of each data
modem and the switch. Connect a customer-fabricated cable from the switch to
the MiniMAC port expander in the COMM 7 position.