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This appendix lists the pinouts for ports on the RP (or RSP7000), EIP, TRIP, FIP optical bypass switch, and MIP for the serial interface cables that connect each FSIP and HSSI port to the external network.
All pins not specifically listed are not connected.
Following is a list of the signal summaries contained in this appendix:
The console port on the RP (and RSP7000) is an EIA/TIA-232, DCE, DB-25 receptacle. Both DSR and DCD are active when the system is running. The RTS signal tracks the state of the CTS input. The console port does not support modem control or hardware flow control. Table A-1 lists the signals used on this port. The console port requires a straight-through EIA/TIA-232 cable.
Table A-1 Console Port Signals
| Pin | Signal | Direction | Description |
|---|---|---|---|
| 1 | GND | -- | Ground |
| 2 | TxD | <--- | Transmit Data |
| 3 | RxD | ---> | Receive Data |
| 6 | DSR | ---> | Data Set Ready (always on) |
| 7 | GND | -- | Ground |
| 8 | DCD | ---> | Data Carrier Detect (always on) |
The auxiliary port on the RP (and RSP7000) is an EIA/TIA-232 DTE, DB-25 plug to which you can attach a CSU/DSU or other equipment in order to access the router from the network. Table A-2 lists the EIA/TIA-232 signals used on this port.
The auxiliary port supports hardware flow control and modem control.
Table A-2 Auxiliary Port Signals
| Pin | Signal | Direction | Description |
|---|---|---|---|
| 2 | TxD | ---> | Transmit Data |
| 3 | RxD | <--- | Receive Data |
| 4 | RTS | ---> | Request To Send (used for hardware flow control) |
| 5 | CTS | <--- | Clear To Send (used for hardware flow control) |
| 6 | DSR | <--- | Data Set Ready |
| 7 | Signal Ground | -- | Signal Ground |
| 8 | CD | <--- | Carrier Detect (used for modem control) |
| 20 | DTR | ---> | Data Terminal Ready (used for modem control only) |
Most Ethernet transceivers require an attachment unit interface (AUI) or transceiver cable to connect an Ethernet transceiver to the EIP Ethernet ports. Some unshielded twisted-pair (10BaseT) transceivers are compact enough to connect directly to the EIP ports without impeding other connections. For descriptions of Ethernet transceivers, connectors, and cables, refer to the section "Ethernet Connection Equipment" in the chapter "Preparing for Installation."
Table A-3 lists the signals for the 15-pin Ethernet connector used on the EIP.
Table A-3 Ethernet Connector Signals
| Pin | Circuit | Description |
|---|---|---|
| 3 | DO-A | Data Out Circuit A |
| 10 | DO-B | Data Out Circuit B |
| 11 | DO-S | Data Out Circuit Shield |
| 5 | DI-A | Data In Circuit A |
| 12 | DI-B | Data In Circuit B |
| 4 | DI-S | Data In Circuit Shield |
| 7 | CO-A | Control Out Circuit A (not used) |
| 15 | CO-B | Control Out Circuit B (not used) |
| 8 | CO-S | Control Out Circuit Shield (not used) |
| 2 | CI-A | Control In Circuit A |
| 9 | CI-B | Control In Circuit B |
| 1 | CI-S | Control In Circuit Shield |
| 6 | VC | Voltage Common |
| 13 | VP | Voltage Plus |
| 14 | VS | Voltage Shield |
| Shell | PG | Protective Ground |
The two connectors on the FEIP are a single MII, 40-pin, D-shell type, and a single RJ-45. You can use either one or the other. Only one connector can be used at one time. Each connection supports IEEE 802.3u interfaces compliant with the 100BaseX and 100BaseT standards. The RJ-45 connection does not require an external transceiver; however, the MII connection does.
The RJ-45 modular connector has strain-relief functionality incorporated into the design of its standard plastic connector.Table A-4 and Table A-5 list the pinouts and signals for the RJ-45 and MII connectors.
Table A-4 FEIP Port Adapter RJ-45 Connector Pinout
| Pin | Description |
|---|---|
| 1 | Receive Data + (RxD+) |
| 2 | RxD-- |
| 3 | Transmit Data + (TxD+) |
| 6 | TxD-- |
Table A-5 FEIP Port Adapter MII Connector Pinout
| Pin(1) | In | Out | I/O | Description |
|---|---|---|---|---|
| 14--17 | -- | Yes | -- | Transmit Data (TxD) |
| 12 | Yes | -- | -- | Transmit Clock (Tx_CLK)(2) |
| 11 | -- | Yes | -- | Transmit Error (Tx_ER) |
| 13 | -- | Yes | -- | Transmit Enable (Tx_EN) |
| 3 | -- | Yes | -- | MII Data Clock (MDC) |
| 4--7 | Yes | -- | -- | Receive Data (RxD) |
| 9 | Yes | -- | -- | Receive Clock (Rx_CLK) |
| 10 | Yes | -- | -- | Receive Error (Rx_ER) |
| 8 | Yes | -- | -- | Receive Data Valid (Rx_DV) |
| 18 | Yes | -- | -- | Collision (COL) |
| 19 | Yes | -- | -- | Carrier Sense (CRS) |
| 2 | -- | -- | Yes | MII Data Input/Output (MDIO) |
| 22--39 | -- | -- | -- | Common (ground) |
| 1, 20, 21, 40 | -- | -- | -- | +5.0 volts (V) |
A network interface cable provides the connection between the 9-pin Token Ring connectors on the TRIP and a media access unit (MAU). The 9-pin connector at the TRIP end, and the MAU connector at the network end, are described in "Token Ring Connection Equipment" in the chapter "Preparing for Installation." Table A-6 lists the signals for the DB-9 Token Ring connector used on the TRIP.
Table A-6 Token Ring Connector Signals
| Pin | Signal |
|---|---|
| 1 | Ring-In B |
| 5 | Ring-Out A |
| 6 | Ring-In A |
| 9 | Ring-Out B |
| 10 and 11 | Ground |
Table A-5 lists the signal descriptions for the mini-DIN optical bypass switch available on the multimode/multimode FIP (CX-FIP-MM) and single-mode/single-mode FIP (CX-FIP-SS). The mini-DIN-to-DIN adapter cable (CAB-FMDD) allows connection to an optical bypass switch that uses a DIN connector (which is larger than the mini-DIN on the FIP). For descriptions of FDDI network configurations and equipment, refer to the section "FDDI Connection Equipment" in the chapter "Preparing for Installation" and to the section "FDDI Connections" in the chapter "Installing the Router."
Table A-7 Optical Bypass Switch Pinout
| Pin | Description |
|---|---|
| 1 | +5V to secondary switch |
| 2 | +5V to primary switch |
| 3 | Ground to enable primary switch |
| 4 | Ground to enable secondary switch |
| 5 | Sense circuit---1 kohm to +5V |
| 6 | Ground---Sense circuit return |
The FSIP supports EIA/TIA-232, EIA/TIA-449, X.21, V.35, and EIA-530 serial interfaces.
All FSIP ports use a universal port adapter, which is a 60-pin receptacle that supports all available interface types. (The exception to this is the E1-G.703/G.704 port adapter, which uses a DB-15 connector.) A special serial adapter cable, which is required for each port, determines the electrical interface type and mode of the interface. The router (FSIP) end of all of the adapter cables is a 60-pin plug; the connectors at the network end are the standard connectors used for the respective interfaces.
All interface types except EIA-530 are available in DTE or DCE format: DTE with a plug connector at the network end and DCE with a receptacle at the network end. V.35 is available in either mode with either gender at the network end. EIA-530 is available in DTE only.
The tables that follow list the signal pinouts for both the DTE and DCE mode serial port adapter cables for each FSIP interface type. For descriptions of serial interface connection and equipment, refer to the section "Serial Connection Equipment" in the chapter "Preparing for Installation" and to the section "Serial Connections" in the chapter "Installing the Router."
Table A-8 EIA/TIA-232 Adapter Cable Signals
| FSIP End, HD 60-Position Plug |
DTE Cable | Network End, DB-25 Plug |
FSIP End, HD 60-Position Plug |
DCE Cable | Network End, DB-25 Receptacle |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal (J1) | Pin | Pin | Signal (J2) | Signal (J1) | Pin | Pin | Signal (J2) | ||||
| Shield ground | 46 | 1 | Shield ground | Shield ground | 46 | 1 | Shield ground | ||||
| TxD/RxDNot used | 4156 | ---> |
27 | TxDNot used | RxD/TxDNot used | 3656 | <--- |
27 | TxDNot used | ||
| RxD/TxDNot used | 3656 | <--- |
37 | RxDNot used | TxD/RxDNot used | 4156 | ---> |
37 | RxDNot used | ||
| RTS/CTSNot used | 4256 | ---> |
47 | RTSNot used | CTS/RTSNot used | 3556 | <--- |
47 | RTSNot used | ||
| CTS/RTSNot used | 3556 | <--- |
57 | CTSNot used | RTS/CTSNot used | 4256 | ---> |
57 | CTSNot used | ||
| DSR/DTRNot used | 3456 | <--- |
67 | DSRNot used | DTR/DSRNot used | 4356 | ---> |
67 | DSRNot used | ||
| Circuit groundNot used | 4556 | 77 | Circuit groundNot used | Circuit groundNot used | 4556 | 77 | Circuit groundNot used | ||||
| DCD/LLNot used | 3356 | <--- |
87 | DCDNot used | LL/DCDNot used | 4456 | ---> |
87 | DCDNot used | ||
| TxC/NILNot used | 3756 | <--- |
157 | TxCNot used | TxCE/TxCNot used | 3956 | ---> |
157 | TxCNot used | ||
| RxC/TxCENot used | 3856 | <--- |
177 | RxCNot used | NIL/RxCNot used | 4056 | ---> |
177 | RxCNot used | ||
| LL/DCDNot used | 4456 | ---> |
187 | LTSTNot used | DCD/LLNot used | 3356 | <--- |
187 | LTSTNot used | ||
| DTR/DSRNot used | 4356 | ---> |
207 | DTRNot used | DSR/DTRNot used | 3456 | <--- |
207 | DTRNot used | ||
| TxCE/TxCNot used | 3956 | ---> |
247 | TxCENot used | RxC/TxCENot used | 3856 | <--- |
247 | TxCENot used | ||
| Mode 0GroundMode_DCE | 505152 | Shorting group |
Mode 0Ground | 5051 | Shorting group |
||||||
Table A-9 EIA/TIA-449 Adapter Cable Signals
| FSIP End, HD 60-Position Plug |
DTE Cable |
Network End, DB-37 Plug |
FSIP End, HD 60-Position Plug |
DCE Cable |
Network End, DB-37 Receptacle |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal (J1) | Pin | Pin | Signal (J2) | Signal (J1) | Pin | Pin | Signal (J2) | ||||
| Shield ground | 46 | 1 | Shield ground | Shield ground | 46 | 1 | Shield ground | ||||
| TxD/RxD+TxD/RxD-- | 1112 | --->---> | 422 | SD+SD-- | RxD/TxD+RxD/TxD-- | 2827 | <---<--- | 422 | SD+SD-- | ||
| TxC/RxC+TxC/RxC-- | 2423 | <---<--- | 523 | ST+ST-- | TxCE/TxC+TxCE/TxC-- | 1314 | --->---> | 523 | ST+ST-- | ||
| RxD/TxD+RxD/TxD-- | 2827 | <---<--- | 624 | RD+RD-- | TxD/RxD+TxD/RxD-- | 1112 | --->---> | 624 | RD+RD-- | ||
| RTS/CTS+RTS/CTS-- | 910 | --->---> | 725 | RS+RS-- | CTS/RTS+CTS/RTS-- | 12 | <---<--- | 725 | RS+RS-- | ||
| RxC/TxCE+RxC/TxCE-- | 2625 | <---<--- | 826 | RT+RT-- | TxC/RxC+TxC/RxC-- | 2423 | --->---> | 826 | RT+RT-- | ||
| CTS/RTS+CTS/RTS-- | 12 | <---<--- | 927 | CS+CS-- | RTS/CTS+RTS/CTS-- | 910 | --->---> | 927 | CS+CS-- | ||
| LL/DCDCircuit ground | 4445 | --->---> | 1037 | LLSC | NIL/LLCircuit ground | 2930 | --->---> | 1037 | LLSC | ||
| DSR/DTR+DSR/DTR-- | 34 | <---<--- | 1129 | DM+DM-- | DTR/DSR+DTR/DSR-- | 78 | --->---> | 1129 | DM+DM-- | ||
| DTR/DSR+DTR/DSR-- | 78 | --->---> | 1230 | TR+TR-- | DSR/DTR+DSR/DTR-- | 34 | <---<--- | 1230 | TR+TR-- | ||
| DCD/DCD+DCD/DCD-- | 56 | <---<--- | 1331 | RR+RR-- | DCD/DCD+DCD/DCD-- | 56 | --->---> | 1331 | RR+RR-- | ||
| TxCE/TxC+TxCE/TxC-- | 1314 | --->---> | 1735 | TT+TT-- | RxC/TxCE+RxC/TxCE-- | 2625 | <---<--- | 1735 | TT+TT-- | ||
| Circuit groundCircuit ground | 1516 | 1920 | SGRC | Circuit groundCircuit ground | 1516 | 1920 | SGRC | ||||
| Mode 1Ground | 4948 | Shorting group | Mode 1Ground | 4948 | Shorting group | ||||||
| GroundMode_DCE | 5152 | Shorting group | |||||||||
Table A-10 X.21 Adapter Cable Signals
| FSIP End, HD 60-Position Plug |
DTE Cable | Network End, DB-15 Plug |
SIP End, HD 60-Position Plug |
DCE Cable | Network End, DB-15 Receptacle |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal (J1) | Pin | Pin | Signal (J2) | Signal (J1) | Pin | Pin | Signal (J2) | ||||
| Ground | 46 | 1 | Shield ground | 46 | 1 | Shield ground | |||||
| TxD/RxD+TxD/RxD-- | 1112 | --->---> | 29 | Transmit+Transmit-- | RxD/TxD+RxD/TxD-- | 2827 | <---<--- | 29 | Transmit+Transmit-- | ||
| RTS/CTS+RTS/CTS -- | 910 | --->---> | 310 | Control+Control-- | CTS/RTS+ CTS/RTS -- | 12 | <---<--- | 310 | Control+Control-- | ||
| RxD/TxD+RxD/TxD-- | 2827 | <---<--- | 411 | Receive+Receive-- | TxD/RxD+TxD/RxD-- | 1112 | --->---> | 411 | Receive+Receive-- | ||
| CTS/RTS+ CTS/RTS -- | 12 | <---<--- | 512 | Indication+Indication-- | RTS/CTS+ RTS/CTS-- | 910 | --->---> | 512 | Indication+Indication-- | ||
| RxC/TxCE+RxC/TxCE-- | 2625 | <---<--- | 613 | Timing+Timing-- | TxC/RxC+TxC/RxC -- | 2423 | --->---> | 613 | Timing+Timing-- | ||
| Circuit ground | 15 | 8 | Circuit ground | Circuit ground | 15 | 8 | Circuit ground | ||||
| GroundMode_2 | 4847 | Shorting group | GroundMode_2 | 4847 | Shortinggroup | ||||||
| GroundMode_DCE | 5152 | Shorting group | |||||||||
| Not used | 16 | 8 | Not used | Not used | 16 | 8 | Not used | ||||
Table A-11 V.35 Adapter Cable Signals
| FSIP End, HD 60-Position Plug |
DTE Cable |
Network End, 34-Position Plug | FSIP End, HD 60-Position Plug |
DCE Cable |
Network End, 34-Position Receptacle | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal (J1) | Pin | Pin | Signal (J2) | Signal (J1) | Pin | Pin | Signal (J2) | ||||
| Shield ground | 46 | A | Shield ground | Shield ground | 46 | A | Shield ground | ||||
| Circuit groundNot used | 4516 | BB | Circuit groundNot used | Circuit groundNot used | 4518 | BB | Circuit groundNot used | ||||
| RTS/CTSNot used | 4216 | ---> |
CB | RTSNot used | CTS/RTSNot used | 3518 | <--- |
CB | RTSNot used | ||
| CTS/RTSNot used | 3516 | <--- |
DB | CTSNot used | RTS/CTSNot used | 4218 | ---> |
DB | CTSNot used | ||
| DSR/DTRNot used | 3416 | <--- |
EB | DSRNot used | DTR/DSRNot used | 4318 | ---> |
EB | DSRNot used | ||
| DCD/LLNot used | 3316 | <--- |
FB | RLSDNot used | LL/DCDNot used | 4418 | ---> |
FB | RLSDNot used | ||
| DTR/DSRNot used | 4316 | ---> |
HB | DTRNot used | DSR/DTRNot used | 3418 | <--- |
HB | DTRNot used | ||
| LL/DCDNot used | 4416 | ---> |
KB | LTNot used | DCD/LLNot used | 3318 | <--- |
KB | LTNot used | ||
| TxD/RxD+TxD/RxD-- | 1817 | --->---> | PS | SD+SD-- | RxD/TxD+RxD/TxD-- | 2827 | <---<--- | PS | SD+SD-- | ||
| RxD/TxD+RxD/TxD-- | 2827 | <---<--- | RT | RD+RD-- | TxD/RxD+TxD/RxD-- | 1817 | --->---> | RT | RD+RD-- | ||
| TxCE/TxC+TxCE/TxC-- | 2019 | --->---> | UW | SCTE+SCTE-- | RxC/TxCE+RxC/TxCE-- | 2625 | <---<--- | UW | SCTE+SCTE-- | ||
| RxC/TxCE+RxC/TxCE-- | 2625 | <---<--- | VX | SCR+SCR-- | NIL/RxC+NIL/RxC-- | 2221 | --->---> | VX | SCR+SCR-- | ||
| TxC/RxC+TxC/RxC-- | 2423 | <---<--- | YAA | SCT+SCT-- | TxCE/TxC+TxCE/TxC-- | 2019 | --->---> | YAA | SCT+SCT-- | ||
| Mode 1Ground | 4948 | Shorting group | Mode 1Ground | 4948 | Shorting group | ||||||
| Mode 0GroundMode_DCE | 505152 | Shorting group | Mode 0Ground | 5051 | Shorting group | ||||||
| TxC/NILRxC/TxCERxC/TxDGround | 53545556 | Shorting group | TxC/NILRxC/TxCERxC/TxDGround | 53545556 | Shorting group | ||||||
Table A-12 EIA-530 Adapter Cable Signals
| FSIP End, HD 60-Position Plug |
DTE Cable(1) | Network End, DB-25 Plug |
||
|---|---|---|---|---|
| Signal (J1) | Pin | Pin | Signal (J2) | |
| Shield ground | 46 | 1 | Shield ground | |
| TxD/RxD+TxD/RxD-- | 1112 | --->---> | 214 | TxD+TxD-- |
| RxD/TxD+RxD/TxD-- | 2827 | <---<--- | 316 | RxD+RxD-- |
| RTS/CTS+RTS/CTS-- | 910 | --->---> | 419 | RTS+RTS-- |
| CTS/RTS+CTS/RTS-- | 12 | <---<--- | 513 | CTS+CTS-- |
| DSR/DTR+DSR/DTR-- | 34 | <---<--- | 622 | DSR+DSR-- |
| DCD/DCD+DCD/DCD-- | 56 | <---<--- | 810 | DCD+DCD-- |
| TxC/RxC+TxC/RxC-- | 2423 | <---<--- | 1512 | TxC+TxC-- |
| RxC/TxCE+RxC/TxCE-- | 2625 | <---<--- | 179 | RxC+RxC-- |
| LL/DCDCircuit ground | 4445 | ---> | 187 | LLCircuit ground |
| DTR/DSR+DTR/DSR-- | 78 | --->---> | 2023 | DTR+DTR-- |
| TxCE/TxC+TxCE/TxC-- | 1314 | --->---> | 2411 | TxCE+TxCE-- |
| Mode_1GroundMode_2 | 494847 | Shorting group |
||
| GroundMode_DCE | 5152 | Shorting group | ||
| Not usedNot used | 1516 | 77 | Not usedNot used | |
Table A-13 shows the signal pinouts for each type of E1-G.703/G.704 interface cable. All cables use a 15-pin D-shell (DB-15) connector at the FSIP end.
Table A-13 E1-G.703/G.704 Adapter Cable Connector Pinouts
| FSIP End | Network End | |||||
|---|---|---|---|---|---|---|
| DB-15(1) | DB-15 | Null ModemDB-15 | BNC | Twinax | ||
| Pin | Signal(2) | Pin | Pin | Signal | Pin | Signal |
| 9 | Tx tip | 1 | 3 | Tx tip | J2-1 | Tx |
| 2 | Tx ring | 9 | 11 | Tx shield | J2-2 | Tx |
| 10 | Tx shield | 2 | 4 | -- | J2 shield | Tx shield |
| 8 | Rx tip | 3 | 1 | Rx tip | J3-1 | Rx |
| 15 | Rx ring | 11 | 9 | Rx shield | J3-2 | Rx |
| 7 | Rx shield | 4 | 2 | -- | J3 shield | Rx shield |
Two types of cables are available for use with the HIP: the HSSI interface cable used to connect the HIP HSSI port with an external DSU (and HSSI network) and a null modem cable, which allows you to connect two collocated routers back to back.
The HSSI interface cable (Product Number CAB-HSI1) connects the HIP port with an external DSU. The cable comprises 25 twisted pairs and a 50-pin SCSI-II-type plug at each end. Although the HSSI cable is similar to a SCSI-II cable, it is not identical; you cannot substitute a SCSI-II cable for a HSSI interface cable. (See the following Caution.) Table A-14 lists the pin signals for the connector.
Table A-14 HSSI Interface Cable Signals
| Signal Name | Pin No., + Side(Router End) | Direction(1) | Pin No., -- Side(DSU End) |
|---|---|---|---|
| SG - Signal Ground | 1 | --- | 26 |
| RT - Receive Timing | 2 | <--- | 27 |
| CA - DCE Available | 3 | <--- | 28 |
| RD - Receive Data Reserved | 4 | <--- | 29 |
| LC - Loopback Circuit C | 5 | <--- | 30 |
| ST - Send Timing | 6 | <--- | 31 |
| SG - Signal Ground | 7 | --- | 32 |
| TA - DTE Available | 8 | ---> | 33 |
| TT - Terminal Timing | 9 | ---> | 34 |
| LA - Loopback Circuit A | 10 | ---> | 35 |
| SD - Send Data | 11 | ---> | 36 |
| LB - Loopback Circuit B | 12 | ---> | 37 |
| SG - Signal Ground | 13 | --- | 38 |
| 5 - Ancillary to DCE | 14--18 | ---> | 39--43 |
| SG - Signal Ground | 19 | --- | 44 |
| 5 - Ancillary from DCE | 20--24 | <--- | 45--49 |
| SG - Signal Ground | 25 | --- | 50 |
The null modem cable (CAB-HNUL) can connect two routers directly back to back. The two routers must be in the same location and can be two Cisco 7000 series, two AGS+ routers, or one of each. A null modem connection allows you to verify the operation of the HSSI or to link the routers directly in order to build a larger node.
The null modem cable uses the same 50-pin connectors as the HSSI interface cable, but uses the pinouts listed in Table A-15. For null modem cable connection and configuration instructions, refer to the section "HSSI Connection Equipment" in the chapter "Preparing for Installation."
Table A-15 HSSI Null Modem Cable Signals
| Signal Name | From Pins | Direction | To Pins | Signal Name |
|---|---|---|---|---|
| Receive Timing | 2, 27 | ---> | 9, 34 | Terminal Timing |
| DCE Available | 3, 28 | ---> | 8, 33 | DTE Available |
| Received Date | 4, 29 | ---> | 11, 36 | Send Data |
| Loopback C | 5, 30 | ---> | 10, 35 | Loopback A |
| Send Timing | 6, 31 | ---> | 6, 31 | Send Timing |
| DTE Available | 8, 33 | ---> | 3, 28 | DCE Available |
| Terminal Timing | 9, 34 | ---> | 2, 27 | Receive Timing |
| Loopback A | 10, 35 | ---> | 5, 30 | Loopback C |
| Send Data | 11, 36 | ---> | 4, 29 | Receive Data |
| Ground | 1, 26,7, 32,13, 38,19, 44,25, 50 | 1, 26,7, 32,13, 38,19, 44,25, 50 | Ground | |
| Loopback (not connected) | 12, 37 | |||
| 12, 37 | Loopback (not connected) | |||
| Not used | 14--18, 20--24, 39--43, 45--49 | 14--18, 20--24, 39--43, 45--49 | Not used |
The MIP T1 interface cables have two, male, 15-pin DB connectors (one at each end) to connect the MIP with the external CSU. Table A-16 lists the pinouts for the null-modem T1 cable, and Table A-17 lists the pinouts for the straight-through T1 cable. Table A-18 lists the pinouts for the E1 interface cables.
Table A-16 T1 Null-Modem Cable Signals
| 15-Pin DB Connector | 15-Pin DB Connector | ||
|---|---|---|---|
| Signal | Pin | Pin | Signal |
| Tx tip(1) | 1 | 3 | Rx tip |
| Rx tip(2) | 3 | 1 | Tx tip |
| Tx ring | 9 | 11 | Rx tip |
| Rx tip | 11 | 9 | Tx ring |
Table A-17 T1 Straight-Through Cable Signals
| 15-Pin DB Connector | 15-Pin DB Connector | ||
|---|---|---|---|
| Signal | Pin | Pin | Signal |
| Tx tip(1) | 1 | 1 | Tx tip |
| Tx ring(2) | 9 | 9 | Tx ring |
| Rx tip | 3 | 3 | Rx tip |
| Rx tip | 11 | 11 | Rx tip |
Table A-18 E1 Interface Cable Pinouts
| MIP End | Network End | |||||||
|---|---|---|---|---|---|---|---|---|
| DB-15(1) | BNC | DB-15 | Twinax | RJ-45 | ||||
| Pin | Signal(2) | Signal | Pin | Signal | Pin | Signal | Pin | Signal |
| 9 | Tx tip | Tx tip | 1 | Tx tip | Tx-1 | Tx tip | 1 | Tx tip |
| 2 | Tx ring | Tx shield | 9 | Tx ring | Tx-2 | Tx ring | 2 | Tx ring |
| 10 | Tx shield | -- | 2 | Tx shield | Shield | Tx shield | 3 | Tx shield |
| 8 | Rx tip | Rx tip | 3 | Rx tip | Rx-1 | Rx tip | 4 | Rx tip |
| 15 | Rx ring | Rx shield | 11 | Rx ring | Rx-2 | Rx ring | 5 | Rx ring |
| 7 | Rx shield | -- | 4 | Rx shield | Shield | Rx shield | 6 | Rx shield |
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