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E4G-400 Connector Pinouts

The following table describes the pinouts for a DB-9 console plug connector.
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Pinouts for the DB-9 Console Connector

Function Pin Number Direction
DCD (data carrier detect) 1 In
RXD (receive data) 2 In
TXD (transmit data) 3 Out
DTR (data terminal ready) 4 Out
GND (ground) 5 —
DSR (data set ready) 6 In
RTS (request to send) 7 Out
CTS (clear to send) 8 In
The following figure shows the pinouts for a 9-pin to 25-pin (RS-232) null-modem cable.
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Null-Modem Cable Pinouts
../Graphics/25pin.svg
The following figure shows the pinouts for a 9-pin to 9-pin (PC-AT) null-modem serial cable.
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PC-AT Serial Null-modem Cable Pinouts
../Graphics/9pin.svg
The following table shows port mapping between the MRJ21 connector on the E4G-B16T1E1 module and the E1/T1 ports.
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Port Mapping between the E4G-B16T1E1 MRJ21 Connectors and T1/E1 Ports

MRJ21 Connector 1 MRJ21 Connector 2
Port 1 Port 9
Port 2 Port 10
Port 3 Port 11
Port 4 Port 12
Port 5 Port 13
Port 6 Port 14
Port 7 Port 15
Port 8 Port 16
The following figure shows the connector-to-port mapping for the MRJ21-to-RJ-48 fan-out cable.
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MRJ21-to-RJ-48 Fan-out Mapping
../Graphics/CSR_035_mrj21_connector.svg
A = Port 1 or 9 E = Port 5 or 13
B = Port 2 or 10 F = Port 6 or 14
C = Port 3 or 11 G = Port 7 or 15
D = Port 4 or 12 H = Port 8 or 16
The following table shows the pinouts for the MRJ21 connector on the E4G-B16T1E1 module.
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MRJ21 Connector Pinouts

T1/E1 Port Number Signal Pin Number T1/E1 Port Number Signal Pin Number
Port 1 or 9 RX-Ring 35 Port 5 or 13 RX-Ring 5
RX-Tip 36 RX-Tip 6
TX-Ring 48 TX-Ring 18
TX-Tip 47 TX-Tip 17
Port 2 or 10 RX-Ring 33 Port 6 or 14 RX-Ring 3
RX-Tip 34 RX-Tip 4
TX-Ring 46 TX-Ring 16
TX-Tip 45 TX-Tip 15
Port 3 or 11 RX-Ring 11 Port 7 or 15 RX-Ring 1
RX-Tip 12 RX-Tip 2
TX-Ring 24 TX-Ring 14
TX-Tip 23 TX-Tip 13
Port 4 or 12 RX-Ring 9 Port 8 or 16 RX-Ring 25
RX-Tip 10 RX-Tip 26
TX-Ring 22 TX-Ring 38
TX-Tip 21 TX-Tip 37
The following table shows the T1/E1 pinout for the RJ-48C connector on the fan-out cable for the E4G-B16T1E1 module.
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Pinouts for the Fan-out Cable RJ-48C Connector

Pin Description
1 RX_RING
2 RX_TIP
3 Shield/Ground
4 TX_RING
5 TX_TIP
6 Shield/Ground
7 —
8 —
Published April 28, 2016prev | next

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