Quad E1 Interface Example - Comtech EF Data CRS-170A Installation And Operation Manual

CRS-170A L-Band 1:1 Redundancy Switch
Cables and Connections
4.2.4.4

Quad E1 Interface Example

The G.703 Balanced and Auxiliary G.703 DB-9F single connectors are used for Quad E1
operation. Note the following:
1. As shown Figure 4-8, the CA-0000071 'Y' Cable provides for two ports of E1 (i.e., Ports 1/2 -
or- Ports 3/4).
2. If you desire three or four separate ports of E1 (i.e., Port 1 and Port 2 -or- Port 3 and Port 4),
then optional adapter cables may be purchased from Comtech EF Data to adapt the G.703
Balanced and Auxiliary G.703 DB-9F single connector pairs to outgoing Quad E1 connector
pairs as follows:
Cable (CEFD
Part No.)
CA-0000163
CA-0000164
KT-0000122
All three cabling options plug into the single 'To User' connector side of each CA-0000071 'Y'
Splitter cable used.
CEFD Part No.
CA-0000071
Converts (1) 9-pin Type 'D' (DB-9F) paired connection (e.g., Modem A
AND Modem B G.703 Balanced connector pair –or– Modem A AND
Modem B Auxiliary G.703 connector pair) to:
(2) 15-pin Type 'D' (DB-15F) connectors
(2) RJ-48 female connectors
(4) BNC 75Ω female connectors – (2) Tx, (2) Rx
Qty Description
2 Cable – 1:1 'Y' Splitter, (2X) DB-9M  DB-9F, 8"
Note 1
Figure 4-8. CDM-625/A Quad E1 1:1 Example
4–10
Revision 10
MN/CRS170A.IOM
See
App. A
Fig.
A-9
A-10
A-11