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This appendix provides details on the cabling required to install the AXIS shelf.
Trunk cables connect the T3 port on the BNM backcard to the BNI T3 port on the collocated BPX node. Refer to Table A-1 for details.
| Cable Parameter | Description |
|---|---|
| Type: | 75-ohm coax cable (RG-59 B/U for short runs, AT&T 734A for longer runs). Two per T3 line (XMT and RCV). |
| Max. Length: | 450 feet max. between the BPX and the AXIS shelf. |
| Connector: | Terminated in male BNC; Rx is receive from trunk, Tx is transmit to trunk. |
Table A-2 : T3 Connector Pin Assignments
| Connector | Description |
|---|---|
| Rx BNC | Receive T3 from trunk |
| Tx BNC | Transmit T3 to trunk |
The IMATM backcard can have eight RJ-48 connectors or eight SMB connectors. Connections are made through short pigtail cables, two adapter cables and two Y-cables for use with redundant IMATM cards.
Figure A-1 : IMATM Backcard Connections
Trunk cables connect the customer DSX-1 crossconnect point or T1-E1 Channel Service Unit to the AXIS node at the FRSM T1 back card (DB15-4T1). Refer to Table A-7 for details.
Table A-3 : T1 Trunk/Circuit Line Cabling Specification
| Cable Parameter | Description |
|---|---|
| Cable Type: | Western Electric 22 AWG, ABAM individually shielded twisted pair
(100 ohm balanced). Two pair per T1 line (1 transmit and 1 receive). |
| Cable Connector: | Male DB-15 subminiature. |
| Max. Cable Length: | 533 ft. (162 m.) maximum between the AXIS and the first repeater or CSU. Selection of cable length equalizers. |
Table A-4 : T1 Connector Pin Assignments
| Pin # | Description |
|---|---|
| 1 | Transmit, Tip |
| 2 | Transmit Pair Shield |
| 3 | Receive, Tip |
| 4 | Receive Pair Shield |
| 9 | Transmit, Ring |
| 11 | Receive, Ring |
E1 trunk cables connect the customer DSX-1 crossconnect point or E1 Channel Service Unit to the AXIS node at the FRSM E1 back card (BNC-4E1).
Table A-5 : E1 Trunk/Circuit Line Cabling Specification
| Cable Parameter | Description |
|---|---|
| Cable Type: BNC-4E1 | 75-ohm coax cable for unbalanced connection Two cables/pairs (1 transmit, 1 receive) per E1 line. |
| Cable Connector: | Two female BNC for unbalanced connection; male DB15 for balanced connection. See Tables A-2 and A-3 for pinouts. |
| Max. Cable Length: | Approx. 100 meters maximum between the AXIS and the first repeater or CSU. Equalizer for cable length. |
Table A-6 : E1 Connector Pin Assignments (unbalanced)
| Connector | Description |
|---|---|
| Rx BNC | Receive E1 from trunk |
| Tx BNC | Transmit E1 to trunk |
E1 trunk cables connect the customer DSX-1 crossconnect point or E1 Channel Service Unit to the AXIS node at the FRSM E1 back card (DB15-4E1)
Table A-7 : E1 Trunk/Circuit Line Cabling Specification
| Cable Parameter | Description |
|---|---|
| Cable Type: Db15-4E1 | Western Electric 22 AWG, ABAM individually shielded twisted pair
(120 ohm balanced). Two pair per T1 line (1 transmit and 1 receive). |
| Cable Connector: | Male DB-15 subminiature. |
| Max. Cable Length: | 533 ft. (162 m.) maximum between the AXIS and the first repeater or CSU. Selection of cable length equalizers. |
Table A-8 : E1 Connector Pin Assignments
| Pin # | Description |
|---|---|
| 1 | Transmit, Tip |
| 2 | Transmit Pair Shield |
| 3 | Receive, Tip |
| 4 | Receive Pair Shield |
| 9 | Transmit, Ring |
| 11 | Receive, Ring |
DC Power connections are made to the DC Power Entry Modules at the rear of the AXIS shelf. Refer to Table A-10 and Table A-9. for acceptable cable and wire types.
DC wiring (Table A-9) is generally provided by the customer.
| Cable Parameter | Description |
|---|---|
| Wiring: | Three conductor, 12 AWG recommended wire gauge, 75°C insulation rating, copper conductors only. Solid or stranded wires. Wire insulation stripped back 0.25" (6mm) at the AXIS connector end. |
| Connection: | EURO Block. |
Figure A-2 : DC Power Connections
AC power cables may be provided by the customer or ordered from StrataCom. Several standard cables are available (see Table A-10). AC cables with other plugs or different lengths may be special ordered. For users who wish to construct their own power cables, the cable must mate with an IEC320 16/20A female receptacle on the rear of the AC power module.
| Cable Parameter | Description |
|---|---|
| Cable: | Provided with 8 feet (2.3 m.) of 3-conductor wire with plug. |
| Plug: customer end | 20 A NEMA L620, 3-prong plug (domestic) or
13 A 250 Vac BS1363, 3-prong fused plug (UK, Ireland) CEE 7/7 (Continental Europe) AS3112 (Australia/New Zealand) CEI23-16/VII (Italy) |
The control ports are used to connect one of the nodes in the network to a control terminal, workstation, or modem connections for remote alarm reporting or system monitoring. Refer to Table A-11 and Table A-12 for details on these cables.
Table A-11 : Maintenance and Control Port Cabling
| Cable Parameter | Description |
|---|---|
| Interface: | RS-232 DCE ports. |
| Suggested Cable: | 24 AWG, 25-wire. A straight-through RS-232 cable is used for a terminal or printer connection. A null modem cable may be needed when interfacing with modems on either port. |
| Cable Connector: | DB-25, subminiature, male. Table A-12 contains a list of the port pin assignments. |
| Max. Cable Length: | 50 feet (15 m.) |
Table A-12 : Maintenance and Control Port Pin Assignments
| Pin# | Name | Source | Description |
|---|---|---|---|
| 1 | FG | both | Frame Ground |
| 2 | TxD | DTE | Transmit Data |
| 3 | RxD | DCE | Receive Data |
| 4 | RTS | DTE | Request to Send |
| 5 | CTS | DCE | Clear to Send |
| 6 | DSR | DCE | Data Set Ready |
| 7 | SG | both | Signal Ground |
| 8 | CD | DCE | Carrier Detect |
| 181 | LL | DTE | Local loop |
| 20 | DTR | DTE | Data Term Ready |
| 211 | RL | DTE | Remote loop |
| 221 | RI | DCE | Ring indicator |
Figure A-3 shows a modem cable that is used for connecting modems to the AXIS Control and Maintenance ports.
The external clock input cable connects the external clock inputs through the T3E3-D and T3E3-B EXT. TMG. connectors. The clock may be 1.544 Mbps for T3E3-D or 2.048 Mbps for T3E3-D. Refer to Table A-13 through Table A-14.
Table A-13 : External Clock Cabling---T3E3-D
| Cable Parameter | Description |
|---|---|
| Cable Type: | Western Electric 22 AWG, ABAM individually shielded twisted pair (100 ohm balanced). One pair per T1 line (1 receive). |
| Cable Connector: | Male DB-15 subminiature. See Table A-14 for pinouts. |
| Max. Cable Length: | 533 ft. (162 m.) maximum between the AXIS and the first repeater or CSU. Selection of cable length equalizers is used. Wire buildout is required. |
Table A-14 : T1 Connector Pin Assignments for EXT. TMG.
| Pin # | Description |
|---|---|
| 1 | |
| 2 | Transmit Pair Shield |
| 3 | Receive, Tip |
| 4 | Receive Pair Shield |
| 9 | |
| 11 | Receive, Ring |
Table A-15 : E1 Clock Cabling---T3E3-B
| Cable Parameter | Description |
|---|---|
| Cable Type: BNC-4E1 | 75-ohm coax cable for unbalanced connection One cable pair (1 receive) per E1 clock input. |
| Cable Connector: | One female BNC for unbalanced connection; male DB15 for balanced connection. |
| Max. Cable Length: | Approx. 100 meters maximum between the AXIS and the first repeater or CSU. Equalizer for cable length. |
Table A-16 : E1 Connector Pin Assignments for EXT.TMG (unbalanced)
| Connector | Description |
|---|---|
| Rx BNC | Receive E1 from trunk |
This cable (Table A-17) is for connecting network alarm outputs to the LM-BNM ALARM OUTPUT connector only. Table A-18 lists the pinouts for the network alarm outputs.
Table A-17 : External Alarm Cabling
| Cable Parameter | Description |
|---|---|
| Interface: | Dry-contact relay closure. |
| Wire: | 24 AWG, shielded, 6-pair. |
| Connector: | DB-15, Subminiature, male |
Table A-18 : Network Alarm Pin Assignments
| Pin | Alarm | Description |
|---|---|---|
| 1 | Audible---Major | Normally open |
| 2 | Common | |
| 9 | Normally closed | |
| 4 | Visual---Major | Normally open |
| 5 | Common | |
| 12 | Normally closed | |
| 7 | unused | n.c. |
| 8 | unused | n.c. |
| 3 | Audible---Minor | Normally open |
| 11 | Common | |
| 10 | Normally closed | |
| 6 | Visual---Minor | Normally open |
| 14 | Common | |
| 13 | Normally closed | |
| 15 | unused | n.c. |
Table A-19 lists the various cables that may be ordered directly from StrataCom. Cable lengths are specified as a suffix to the StrataCom model number. For example 5610-50 indicates a 50 foot cable. Cables are generally available in standard lengths of 10 ft. (3 m.), 25 ft. (7.6 m.), 50 ft. (15 m.), 75 ft. (22.8 m.) and 100 ft. (30 m.) Lengths of 101 ft. (30 m.) to 600 ft. (183 m.) are available on a special order.
When a cable is connectorized, the connector gender (male-female) will be indicated as well as the number of pins. For example RS-232/M25-M25 indicates a cable terminated with a male DB25 at both ends.
Table A-19 : Standard Cables Available from StrataCom
| Model# | Description | Usage |
|---|---|---|
| T3-E3-10
T3-E3-25 T3-E3-50 T3-E3-75 T3-E3-xx |
75 W coax/BNC-BNC, 10'
25' 50' 75' length to be specified |
T3 or E3 trunk interface |
| 5620 | RS-232/M25-F25 | Control port to control terminal, StrataView, or ext. window device |
| 5621 | RS-232/M25-M25 special | Control or Maintenance. port to modem |
| 5601 | Ground cable | DC |
| 5670 | Molex-pigtail | DC |
| 5671 | Spade lug-pigtail | DC |
The redundancy cables are a special "Y" cable available from StrataCom. They are required for redundant trunk and data interfaces. Table A-20 lists the Y-cables used with various AXIS back cards.
Table A-20 : Redundancy Y-Cables
| Y- Cable | Used On | StrataCom P/N |
|---|---|---|
| T3 trunk | T3E3-D
T3E3-B |
T3-E3-Y |
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